The family of devices for hematite low intensity magnetic separation and re-election, flotation, high intensity magnetic separation joint, namely to enable the weak magnetic spin recovery of magnetite with the re-election, flotation, or strong magnetic recovery of the weak parts of speech of iron minerals Fu, and even the process of magnetization Fu burn magnetic separation methods or other methods, and the magnetization of a single weakly magnetic iron ore, burning, similar, but parallel with other methods of beneficiation processes in the magnetization Fu burn magnetic iron ore fines using low intensity magnetic separation with the other methods, selective flocculation to remove mud method.