The utility model discloses a be used for welding, gas cutting smoke and dust to absorb processing apparatus, including the person in charge, smoke and dust case and the smoke and dust absorbent assembly of ventilating, the one side that is located the smoke and dust case is responsible for in the ventilation, and this the side upper portion and the one end fixed connection who is responsible for that ventilates of smoke and dust case just communicate with each other. The opposite side of smoke and dust case is provided with the first body of a plurality of, and the one end of each first body communicates with each other with the lateral wall of smoke and dust case, and its other end is connected with the hose. Smoke and dust absorbent assembly also has a plurality of, communicates with each other through hose and first body one -to -one respectively. Smoke and dust absorbent assembly includes second body, third body and collection petticoat pipe, and the one end and the terminal of hose of second body communicate with each other, and the other end communicates with each other through a spherical hinge chain with the third body. The end of third body links to each other through the 2nd spherical hinge chain and album petticoat pipe, the inboard of collection petticoat pipe is provided with smoke transducer. The utility model discloses simple structure, the practicality is strong, low in manufacturing cost, it is effectual to remove the smoke and dust.