Permanent magnet fluid treating device

The invention provides a permanent magnet fluid treating device, which relates to a fluid treating device, and aims to solve the problem that the conventional permanent magnet fluid magnetizing device cannot meet the requirement of fluid magnetization treatment by using a constant magnetic field and has low magnetic field strength. Two end covers are hermetically assembled at the two ends of a shell respectively; a rotating shaft is rotatably connected with the end covers through bearings on the end covers; a plurality of stator permanent magnets are fixedly arranged in stator permanent magnet grooves on the inner surface of a stator core respectively; a plurality of rotor permanent magnets are fixedly arranged in rotor permanent magnet grooves on the outer surface of a rotor core respectively; gaps are reserved between the stator permanent magnets and the rotor permanent magnets; a fluid treatment chamber is formed by cavity in the shell in which the two end covers are arranged; and the shell is provided wit