The utility model relates to treatment and recovery of scrap iron. The utility model relates to a separator, in particular to a belt-type scrap iron separator. The problem that after-treatment of scrap iron in a traditional factory machining workshop is not perfect enough is solved. Wherein the magnetic block is used for separating magnetic scraps from mixed scraps, the first conveying belt is used for conveying the magnetic scraps, the first roller, the semi-magnetic roller and the second roller are used for fixing and guiding the first conveying belt to move, and the motor is used for driving the second roller to rotate so as to drive the first conveying belt to move. According to the utility model, the structure of the traditional scrap iron treatment mode and equipment is improved, theenvironmental pollution is reduced, and the reutilization of energy is realized.