Cooling fin dust removal device for computer mainboard

The utility model discloses a cooling fin dust removal device for a computer mainboard. The radiator comprises a radiating fin group and a micro air pump, a heat conduction pipe is horizontally and fixedly arranged at the upper end of the cooling fin set. A soft guide pipe is fixedly arranged at an air outlet of the micro air pump; a hard guide pipe is fixedly arranged at the tail end of the softguide pipe, auxiliary guide pipes are horizontally and fixedly arranged on the side wall of the hard guide pipe at equal intervals from left to right, meanwhile, the auxiliary guide pipes are insertedinto the lower sides of the gaps between the adjacent cooling fins of the cooling fin set in a penetrating mode, and spraying holes are formed in the upper sides of the auxiliary guide pipes at equalintervals. According to the utility model, the radiating fin group dissipates heat generated by elements on the mainboard; and then heat is conducted out through the heat conduction pipe, so that theauxiliary guide pipes distr