Computer noise reduction device

The utility model discloses a noise reduction device for a computer, which relates to the technical field of computers, and is characterized by comprising an outer shell, an inner shell, a dust suction pipe and an air inlet pipe, a sound insulation layer is arranged on the inner wall of the inner shell; a heat conduction layer is arranged on the outer wall of the inner shell; a base is arranged in the inner shell, an air cushion layer is arranged at the top of the base, a sound insulation plate is arranged at the top of the air cushion layer, and the sound insulation plate is fixedly connected with the inner wall of the top of the inner shell; a cooling fan is arranged at the bottom of the base; a plurality of radiating fins are arranged on the heat conducting layer; a plurality of heat dissipation holes are formed in the side wall of the outer shell; a dust collection box is arranged on the outer wall of the bottom of the outer shell; one end of the dust suction pipe communicates with the interior of the dus