The utility model belongs to the equipment field that the ferromagnetism foreign matter was got rid of in carrying to feed processing trade material, concretely relates to detaches the higher high efficient feed edulcoration pipe magnetic separator of iron tramp risk ratio for one kind. It includes the urceolus and sets up in the inside inner tube of urceolus, is equipped with the discharge gate that is located the feed inlet above the inner tube and is located the inner tube below on the urceolus, and the urceolus side is equipped with the urceolus door, and the inner tube includes tapered hood and have arc concave -convex structure's tubulose part that the tubulose part embeds the permanent magnet. The utility model discloses can be applied to fields such as food processing, grain processing, feed processing and fine chemistry industry, can improve the area of contact of material and permanent magnet, make the iron tramp in the material adsorbed more high -efficiently, guarantee fodder product quality and stable quality nature, produce huge productivity effect.