Multifunctional welding machine

The utility model relates to the technical field of welding, in particular to a multifunctional welding machine. The device comprises a base, the upper surface of the base is fixedly connected with a fixed table, the upper surface of the fixed table is rotatably connected with a rotating disc, the upper surface of the rotating disc is provided with a rotating piece, one side of the outer surface of the rotating piece is fixedly connected with a supporting frame, and the end, away from the base, of the supporting frame is provided with a fixed rod. A heat dissipation device is arranged on one side of the outer surface of the fixing rod, a rotating plate is rotationally connected to one side of the outer surface of the fixing rod, a balancing device is arranged on one side of the outer surface of the base, an air pump is started, air generated by the air pump enters an air blowing ring through an air blowing pipe, and then the air is blown out through air blowing holes; therefore, the possibility that the weldi