The self unloading electromagnetic iron remover consists of a frame and an electromagnetic iron remover body. The frame is equipped with a driving drum, a driven drum and a idler. The driving drum, the driven drum and the idler are equipped with an iron unloading belt winding the electromagnetic iron remover body. A condenser is installed above the electromagnetic iron remover body. The condenser is connected with the inner cavity of the electromagnetic iron remover body through an oil pipe, An oil pump is connected on the oil pipe to form an oil circulation system, and an oil conservator connected with the inner cavity of the electromagnetic iron remover body is arranged on one side of the condenser. The forced oil circulation heat exchange method and fan cooling are selected, so the cooling effect is good, the magnetic field force is greatly improved, the layout is compact, the operation is stable, and the operation is safe and reliable. It is especially suitable for large flow, thick materials, high demand for iron removal in coal, port, electric power and other occupations. The iron core of the dry-type electromagnetic iron remover is made into a hollow core and runs through the yoke. The cooling ring made of non-magnetic materials can be longitudinally arranged between the windings, and a plurality of cooling fins made of magnetic materials are welded on the outer cover of the iron remover. The heat dissipation effect is obvious, so that the temperature of the iron remover is greatly reduced during operation.