RCDC series air-cooled self-unloading electromagnetic iron remover is an iron removal mechanism composed of driving motor, roller, iron removal tape with scraper, etc. on the basis of RCDA series air-cooled suspended electromagnetic iron remover. During the working process, the iron unloading mechanism automatically throws the ferromagnetic substances adsorbed on the iron unloading belt into the container other than the iron remover, and does not need to be cleaned manually without power failure, realizing the automation of iron removal.