Air supply system of workshop welding fume treatment equipment

The utility model discloses an air supply system of workshop welding fume treatment equipment, which comprises two welding fume devices symmetrically arranged in a workshop, one end of each welding fume device is fixedly provided with a workshop stand column a communicated with the welding fume device, and the top of each workshop stand column a is provided with a platform assembly communicated with the workshop stand column a. The end of the platform assembly is connected with a traveling crane assembly through workshop stand columns b, a plurality of air suction assemblies communicated with the traveling crane assembly are arranged at the bottom of the traveling crane assembly, an air supply pipe assembly communicated with the welding fume equipment is arranged at the other end of the welding fume equipment, and an air supply grille assembly communicated with the air supply pipe assembly is fixedly arranged on one side of the air supply pipe assembly. When the device is used, welding fume in a workshop is e