Magnetic separator tailing detector

The utility model discloses a magnetic separator tailing detector, which belongs to the technical field of magnetic separator detection and comprises a detector body, the detector body comprises a head body, a telescopic hand lever and a handle which are sequentially connected from left to right, and a film is sleeved outside the head body. The end parts of the films are gathered to the joint of the head body and the telescopic hand rod and are fixed on the telescopic hand rod through a clamping piece, the telescopic hand rod comprises a main rod connected with the head body and an auxiliary rod arranged at one end, far away from the head body, of the main rod, and the handle is arranged at one end, far away from the main rod, of the auxiliary rod. The detector body is placed in a plurality of positions of a tailing groove body of the magnetic separator, if more ferrous metals are adsorbed on the magnetic block of the head body after the detector body is taken out, the phenomenon of metal loss of the magnetic