Multifunctional game computer

The invention discloses a multifunctional game computer which comprises a computer host, a cover plate is fixedly installed on one side of the computer host, a fixing block is arranged in the middle of the cover plate, a plurality of fixing plates are arranged on the fixing block in an annular array mode, a filter screen is fixedly installed between every two adjacent fixing plates, and a heat dissipation mechanism is arranged on the cover plate. A diffusion mechanism is arranged on one side of the cover plate. Air and heat in an inner cavity of a computer host are driven to flow through operation of a cooling fan, a rotating shaft of the cooling fan drives a first mounting block to rotate, and the inner walls of first mounting grooves in the two sides of the first mounting block extrude two first connecting shafts correspondingly, so that two movable rods move reversely in the horizontal direction; and one end of the movable rod drives the connecting plate and the cleaning plate to move on the outer wall of