Shaft bottom magnetic cleaning tool capable of eliminating magnetic interference

The invention discloses a shaft bottom magnetic force cleaning tool capable of eliminating magnetic force interference. The shaft bottom magnetic force cleaning tool comprises an upper drill rod structure 1, an upper annular magnetic force area 2, a middle outer circle magnetic force area 3 and a lower end face magnetic force area 4. An upper drill rod joint thread is arranged in one end of the upper drill rod structure, so that the upper drill rod structure is connected with a drill rod; spiral righting edge belts are arranged at the two ends of the upper annular magnetic force area, and a rectangular magnet is arranged on the upper annular magnetic force area between the two spiral righting edge belts; a middle excircle magnetic area; rectangular magnets are arranged on the periphery of the middle outer circle magnetic force area. A lower end face magnetic area; a three-stage magnetic structure is adopted, and all magnetic materials which interfere with magnetic exploration on the well wall, the well bottom