The scientist today are really stupid, if you look at their track record. For decades they believed and did research work and Ph’d on the Piltdown Man?
A few may have, for a while. So what?
Why are you so angry at scientists? Were the nerdy kids mean to you in school? Are you unable to win an argument with scientists, so the only option you see is to lash out and call them stupid? Boy, that stings!

If this group of people were stupid enough to believe that lie, when why would you expect them the smart enough to distinguish another lie?
They were smart enough to recognize, and then conclusively show, it was a hoax.
Why the attitude?
Their track record has proven that if something fits into their narrative, they will believe it.
Sometimes. In science, though, until there is independent confirming data, conclusions will be suspect.
The Piltdown Man was a phony, but the scientific community did not investigate it, but spend thousands of dollars in research to support it.
Citation needed.
If no investigation was conducted, how was the hoax discovered and put to rest? Your statement makes no sense.
Know, the same hold true to the scientists that believe in the heliocentric hypothesis. If you give them enough CGI videos and some complicated equations, they will believe it, without questions, as long as it fits into their narrative.
Well, there's the small matter that the heliocentric model of the solar system describes observations and provides reliable (and testable!) predictions about what hasn't happened yet.
Did you know that the heliocentric model of the solar system has been accepted as correct for centuries, but practical CGI has existed for only two or three decades. If your claim were correct, why did anyone believe it before the 1980s? Your assertion makes no sense whatever.
If it takes complicated equations to accurately describe reality, then they will be useful insofar as they do describe reality. Why do you see that as a problem? Do feel intimidated by people who worked harder than you did when they had a chance to learn mathematics, and what they can do with it? Tough.
They will also defend it to the max.\
Sure. Why not? It works well. If something demonstrably better comes along, the heliocentric model will be replaced by the better model.
So bottom line, can the scientific community be trusted that they don’t believe in lies?
Occasionally data is falsified; when it happens, good research will bring it to light. It would be pretty difficult to falsify data about the shape of the earth and the motion of the earth and planets because that data is constantly being tested by a large number of people.
Going back to your initial assertion, for the entirety of its existence, Piltdown Man was viewed with quite a bit of skepticism. In all areas of research, some paths of investigation are dead ends. Eventually, lines that prove useful, survive, while others die out. That, incidentally, is how evolution works.