Smoke dust removal device in electric welding shed

The invention discloses a smoke dust removal device in an electric welding shed. The smoke dust removal device comprises an air inlet device and an air outlet device, wherein the air inlet device comprises an explosion-proof air inlet air filter, an air inlet machine and an air inlet pipe; the explosion-proof air inlet air filter, the air inlet machine and the air inlet pipe are sequentially connected; the air inlet pipe is arranged inside the electric welding shed; the explosion-proof air inlet air filter is arranged outside the electric welding shed and is used for inhaling fresh air; the air outlet device comprises an air outlet pipe, an air outlet machine, a water injection absorption device and an explosion-proof air outlet air filter which are sequentially connected; the air outlet pipe is arranged inside the electric welding shed; and the explosion-proof air outlet air filter is arranged outside the electric welding shed. The concentration of toxic and harmful smoke dust in the electric welding shed can be effectively reduced, and the comfort of electric welding operation and oxyacetylene torch cutting and the fireproof explosion-proof function of the electric welding shed are improved; and meanwhile, toxic and harmful smoke dust is effectively adsorbed and recovered, and the environmental pollution is prevented.