Computer case with self-cleaning function

The utility model belongs to the technical field of computer cases, and particularly relates to a computer case with a self-cleaning function, which comprises a case body. An ion fan is embedded in a top plate of the box body; an air outlet of the ion fan is positioned in the box body The air inlet pipe is sequentially communicated with the cooling device, the drying agent box and the ion fan; the inner surface of the side plate of the box body is connected with a funnel, and a sealing gasket at the lower end of the funnel is in contact with a dust collection frame connected with the top end of the side plate of the dust collection box; the dust collection box communicates with an exhaust fan. Outside air is cooled and dried and then is blown into the box body through the ion fan, so that the heat dissipation efficiency of computer components in the box body is improved; air containing charged ions generated by the ion fan enters the box body and can neutralize static electricity and blow down dust on all com