Heat dissipation device for electrical equipment

The utility model discloses an electrical equipment heat dissipation device which comprises a heat dissipation box, a heat dissipation cover is installed on the inner bottom face of the heat dissipation box, a first motor is installed in the heat dissipation cover, a first heat dissipation fan is fixedly installed at the center position of the top face of the heat dissipation box, and second heat dissipation fans are installed on the two sides of the first heat dissipation fan. Air outlets are fixedly formed in the positions, corresponding to the two second heat dissipation fans, of the top face of the heat dissipation box, heat dissipation openings are formed in the surfaces of the two sides of the heat dissipation box, filter screens are installed at the ends of the heat dissipation openings, and a second motor is installed at the position, corresponding to the heat dissipation openings, of the outer wall of the heat dissipation box through a support. A supporting plate is installed at the output end of the