Composite small junk fishing socket

The utility model relates to a junk fishing device for an oil-water well, in particular to a composite small junk fishing socket. A magnetic shield is sleeved outside a magnetic body of the fishing socket, the upper end of the magnetic shield is connected with a small male buckle at the lowest end of an upper composite joint, a fishing socket body is sleeved outside the magnetic shield and connected with a big male buckle of the upper composite joint, a fishing claw of a turnover plate is installed at the lower end of the fishing socket body through a pin roll, a torsional spring is sleeved on the pin roll and installed on the fishing claw of the turnover plate, and the lower end of the fishing socket body is processed into a hard alloy sleeve mill shoe. The composite small junk fishing socket can fish small metallic and nonmetallic junks at one time, so the fishing success rate of small junks is improved. The defect that the existing small junk fishing tool is has difficulty in fishing the metallic and nonme