Process for producing steel slag iron fine powder

The process of producing fine iron powder with steel slag includes the following steps: stoving steel slag in a drum type drier to water content less than 1.5%, pre-magnetizing steel slag in an electromagnetic pre-magnetizing device, pre-homogenizing, dry pulverizing, separating steel slag powder of 3 mm below size, wind separating steel slag powder of 3 mm below size into two parts including steel slag powder of 180 mesh over size and steel slag powder of 180 mesh below size, magnetically separating the steel slag powder of 180 mesh over size in a permanent magnetic separator, demagnetizing the separated steel slag powder, grinding the demagnetized steel slag powder to 180 mesh below size, and separating steel slag fine iron powder from superfine steel slag powder. The present invention has low production cost and no environmental pollution.