Dust removal assembly and heat dissipation device with dust removal assembly

The utility model relates to a dust removal assembly and a heat dissipation device with the dust removal assembly, the dust removal assembly comprises an inner filter screen, an outer filter screen, a shell, a dust removal fan and a moving mechanism, a strip-shaped suction port part is arranged on a first plate, a strip-shaped blowing port part is arranged on a second plate, at least part of the dust removal fan is arranged in the shell, the suction port part faces the inner filter screen, and the blowing port part faces the outer filter screen. The blowing opening part faces the outer filter screen, the suction opening part and the blowing opening part are communicated with the containing cavity to form an air channel, and the dust removal fan is used for generating negative pressure suction force in the air channel, sucking dust on the inner filter screen into the suction opening part and blowing the dust out of the blowing opening part. When the dust removal fan works, fine dust on the inner filter screen