Heat dissipation device of reinforced computer

The utility model discloses a heat dissipation device of a reinforced computer, which comprises a case, a cooling fan I, a dust blocking plate, a heat dissipation bracket, a cooling box bracket, a cooling box, a cooling pump, a cooling fin, a cooling pipe and a cooling fan II, the cooling bracket and the cooling box bracket are arranged on the bottom wall of the case, and the cooling fan II is arranged below the heat dissipation bracket; the cooling fins are arranged on the cooling support, the cooling pipes are arranged between the cooling fins in a U-shaped mode, the cooling box is arrangedon the cooling box support, the cooling pump is arranged on the cooling box, the first cooling fan is arranged on the inner side wall of the machine box, and a dust blocking plate sliding cavity is formed in the side wall, perpendicular to the bottom wall, in the machine box. The dust blocking plate sliding cavity and the first cooling fan are arranged on the two opposite side walls of the case respectively, an electromag