Top cover type fire extinguishing device for equipment cabinet

The invention relates to the technical field of fire extinguishing devices, in particular to a top cover type fire extinguishing device for an equipment cabinet. The top cover type fire extinguishing device for the equipment cabinet extinguish fire accurately, and has the beneficial effects of being high in replacing performance, mobility and adaptability. The top cover type fire extinguishing device for the equipment cabinet comprises a cabinet body, a first firefighting spray head, a second firefighting spray head. A front side firefighting channel and a rear side firefighting channel are arranged on the front side and the rear side of the cabinet body respectively. A plug shelf is installed in the cabinet body, and equipment in an equipment room is installed in the plug shelf. A shell is arranged on the top outside the cabinet body. A gas storage device, a firefighting controller and a smog probe are arranged in the shell. The firefighting controller is communicated with the gas storage device, and the smo