Electromagnetic welding double-seal pipe fitting connecting structure

The utility model discloses an electromagnetic welding double-seal pipe fitting connecting structure, which belongs to a pipeline connecting structure and overcomes the shortages that steel-plastic composite pipes with full specification are hard to weld in the existing welding structures, leakage after welding can not be repaired, and hole shrinkage after welding is severe. The connecting structure comprises a pipe fitting and a steel-plastic composite pipe, the pipe fitting is provided with at least one welding end made of plastics and consisting of an inner ring wall, an outer ring wall and a socket formed between the inner ring wall and the outer ring wall, the steel-plastic composite pipe inserted in the socket is welded with the inner ring wall and the outer ring wall, and the thickness of the inner ring wall is smaller than that of the outer ring wall. When the connecting structure is used for connection, the steel-plastic composite pipe is firstly inserted into the socket of the pipe fitting, and then