Multi-depth mechanical drill rod fisher

The utility model discloses a multi-depth mechanical drill rod fisher, which relates to the technical field of drill rod salvage and comprises a salvage barrel outer pipe, a drill rod is movably mounted in the salvage barrel outer pipe, a first fixing ring is welded at the bottom of the drill rod, a steel cable is mounted on the outer wall of the first fixing ring, pulleys are symmetrically mounted in the salvage barrel outer pipe, and the first fixing ring and the second fixing ring are welded in the salvage barrel outer pipe. The two sets of pulleys are arranged, the steel cable is wound around the outer walls of the pulleys, a balancing weight is movably installed in the fishing socket outer pipe, a second fixing ring is installed at the top of the balancing weight, one end of the steel cable is installed on the outer wall of the second fixing ring, and a hook claw is installed at the bottom of the balancing weight. The fisher claw is combined with the male tap at the upper part of the drill rod to fish th