Fire-fighting cabinet with dustproof structure

The utility model relates to a fire-fighting cabinet with a dustproof structure. The fire-fighting cabinet comprises a cabinet body, a dustproof mechanism and an air suction mechanism, a plurality of partition plates are horizontally arranged in the cabinet body, the left-right width of the partition plates is smaller than that in the cabinet body, and the partition plates are staggered front and back, so that the partition plates and the inner wall of the cabinet body form an S-shaped air duct; the left upper end of the cabinet body is obliquely arranged to form an inclined plane, a ventilation opening is formed in the inclined plane, a dustproof structure is arranged on the ventilation opening and comprises a shutter, and a first dustproof net is arranged on the outer side of the shutter; an air outlet is formed in the lower end of a left side plate of the cabinet body, and an air suction mechanism used for sucking out air in the cabinet body is arranged on the air outlet. In the air suction process of the