Through a copper tube and carbon arc gouging torch is composed of a delivery of compressed air, in front of the lateral tube is connected with a flat circular clamping terminal, and in the end of the handle clamp flat round clip terminal is used for clamping, ignite the arc of Shi Mobang; in which the axial part is provided with a valve core with the horizontal valve switch at the front end of the push rod is connected with a movable fit; pipe joint at the rear end, in parallel with the pipe joint a wiring board and the copper tube end is connected, the terminal has communicated with the lower clamping nozzle and brass forward. The copper coat integral high temperature resistant bakelite insulating sleeve, the use of tail pipe joint connected to the compressed air hose, the wiring board is connected to power line, the other pole lap and the workpiece to form a current loop, the nozzle will blow away the molten steel workpiece local heating and melting of the compressed air, realize cutting operation of workpiece.