Material barrel special machine

The invention belongs to the technical field of material barrel special machines and particularly relates to a material barrel special machine. The material barrel special machine comprises a module support, a module connected with the module support, a plasma surfacing gun adjustably mounted on the module, a continuous powder feeder arranged at the upper end of the plasma surfacing gun for connection, a driving mechanism, a driven mechanism, a material barrel which is adjusted through the driving mechanism and the driven mechanism, and a plasma control power source which controls the plasma surfacing gun and the continuous powder feeder. The plasma surfacing gun comprises an upper gun body, an insulator, a lower gun body and a spray nozzle which are connected in sequence from top to bottom, wherein the insulator is connected with the upper gun body and the lower gun body through screw threads, and a protective cover is disposed on the outer side of the spray nozzle. The material barrel special machine disclo