Steel structure beam column connecting structure convenient to disassemble and assemble

The utility model relates to the technical field of steel structures, in particular to a steel structure beam column connecting structure convenient to disassemble and assemble, which comprises a steel column body, a mounting sleeve plate is welded outside the middle upper part of the steel column body, and reserved square holes are integrally formed in the middle positions of the four side end surfaces of the mounting sleeve plate; the upper extrusion bolt, the groove, the convex block, the lower extrusion bolt, the H-shaped steel beam body and the limiting square block are arranged on the left side and the right side of the H-shaped steel beam body, a reserved square hole is formed in the middle of the H-shaped steel beam body, the H-shaped steel beam body is inserted into the reserved square hole, and limiting side plates are arranged on the two sides of the reserved square hole. After the two sets of protruding blocks are clamped into the two sets of grooves connected with the single I-shaped steel beam b