Dustproof computer case convenient for heat dissipation

The invention discloses a dustproof computer case convenient for heat dissipation. The dustproof computer case comprises a mainframe box main body, a heat dissipation grating, a first dustproof net, aU-shaped baffle, a first heat dissipation fan, a mounting cavity, a fixing frame body, a first damping spring, a partition plate, a mounting hole, a second heat dissipation fan, an air drying net, asecond damping spring, a third damping spring, a ventilation opening, a second dustproof net, a first mounting plate, a second mounting plate, a third mounting plate and a fourth mounting plate. A plurality of clamping holes are evenly formed in the third mounting plate and the fourth mounting plate, clamping blocks are fixedly mounted at the ends of the first mounting plate, the second mounting plate, the third mounting plate and the fourth mounting plate and matched with the clamping holes, movable baffles are arranged on the front side and the rear side of the fixing frame, and a pluralityof strip-shaped heat dissip