Energy-saving metal separator

The utility model discloses an energy-saving metal separator, which belongs to the technical field of metal detection and comprises a barrel, a feed hopper is fixed at the top end outside the barrel, a spiral blade is arranged inside the feed hopper, a cover plate is arranged on the periphery inside the barrel, an inclined plate is arranged on one side of the cover plate inside the barrel, and the inclined plate is spliced into a funnel shape. A fixing plate is fixed in the barrel, a rectangular pyramid is arranged outside the fixing plate, and the rectangular pyramid is located at the top end of the inclined plate; by arranging the spiral blades, the metal mixture is injected at a constant speed and slowly, the problem that metal separation is not thorough due to the fact that too much metal is injected at a time is solved, the spiral blades are tightly attached to the feeding hopper, and therefore the metal mixture must slide down through gaps between the spiral blades in the injection process; therefore, t