Dust-removing and heat-dissipating device for computer

The utility model relates to a dust removal and heat dissipation device for a computer. The system comprises an outer cabinet, a heat dissipation circulation pipeline and a cooling unit, the cold liquid inlet end of the heat dissipation circulation pipeline is communicated with the cooling unit, the liquid outlet end of the heat dissipation circulation pipeline is communicated with the cold liquidinlet end of the outer cabinet, the hot liquid inlet end of the heat dissipation circulation pipeline is communicated with the outer cabinet, and the outlet end of the heat dissipation circulation pipeline is communicated with the cooling unit; wherein the outer cabinet comprises a cabinet body, a plurality of cooling fans, a plurality of base station equipment mounting positions and a cabinet door, the opening end of the cabinet body is movably connected with the cabinet door, one end of each cooling fan is connected with the cabinet body, the other end of each cooling fan is connected withthe corresponding base sta