Active filter cabinet with heat dissipation device

The utility model relates to the technical field of active filtering cabinet heat dissipation, in particular to an active filtering cabinet with a heat dissipation device, which comprises a heat dissipation hole, a heat dissipation assembly, a heat dissipation plate, a sliding limiting piece, a limiting jacking piece and a guide piece, wherein the heat dissipation plate is matched with the heat dissipation hole to carry out heat dissipation and waterproof adjustment on the active filtering cabinet; the guide piece is arranged on the surfaces of the active filter cabinet and the heat dissipation plate; the beneficial effects are that the waterproof transition area arranged on the heat dissipation plate is matched with the heat dissipation holes so as to realize waterproofing of the active filtering cabinet in rainy days, the second heat dissipation area is matched with the heat dissipation holes so as to realize waterproofing and heat dissipation of the active filtering cabinet to a certain extent, and the fir