Horizontal well full-bore soluble degradable fracturing bridge plug

The invention relates to the technical field of shale gas well fracturing, in particular to a horizontal well full-bore soluble degradable fracturing bridge plug. The lower end of a connector of the bridge plug is connected with a center cylinder, the outer wall of the lower end of the center cylinder is fixedly provided with a sealing rubber sleeve through a non-coupling clamp. The side wall of the lower portion of the sealing rubber sleeve is in a folded shape, three fixing balls are embedded at the bottom end of the sealing rubber sleeve in the peripheral direction in a uniform-angle mode, an anti-skid layer is arranged on the surface of each fixing ball, a ball base is arranged inside the upper end of the sealing rubber sleeve, the outer wall of the bottom end of the ball base is designed to be an inverted conical surface, the upper end of the outer wall of the inverted conical surface of the ball seat is a slope with the inclination angle being 8 degrees, the upper end of the outer wall of the slope of the ball base is a stepped face. No residue exists inside a fractured well shaft, the ball and the ball base are dissoluble, the sealing rubber cylinder is degradable, a production channel is enlarged, the sand jamming risk is eliminated, later-period other job execution is convenient, pitching is avoided, the operation cost is reduced, the construction procedure is simplified, the structure is simple, and use is safe and reliable.