Detachable protective cover for repair welding machine

The detachable protective cover for the repair welding machine comprises a fixed base, a workbench is fixedly connected to the upper end of the fixed base, two symmetrically-arranged grooves are formed in the upper end face of the workbench, fixing blocks are inserted into the two grooves, and the fixing blocks are fixedly connected with the workbench. The upper ends of the two fixing blocks are jointly and fixedly connected with a protective cover body, a cavity is formed in the workbench, a fixing mechanism used for fixing the two fixing blocks is arranged in the cavity, and a driving mechanism used for driving the fixing mechanism is further arranged in the cavity. The welding protection cover is reasonable in structure, the fixing mechanism and the driving mechanism are arranged so that the protection cover body can be conveniently fixed and conveniently assembled and disassembled, the dust collection mechanism is arranged so that smoke generated in the welding process can be adsorbed into a dust collecto