The invention discloses a deoiling machine for hardware metal parts. The deoiling machine comprises a barrel, a stirrer is arranged in the barrel, and the stirrer is arranged at the bottom of the barrel. An interlayer net is arranged above the stirrer in the barrel. A foul solution removing charging pipe is arranged in the barrel. A workpiece feeding pipe is further arranged in the barrel. A hydraulic rod is arranged on the top of the barrel, a brush plate is arranged at the end of the hydraulic rod, and bristles are arranged on the bottom face of the brush plate. A drain pipe is arranged at the bottom of the barrel. Blowers are further arranged on the top of the barrel, and an air outlet pipe is arranged at the end of each blower. Water inlet pipes are arranged on the top of the barrel. Fast deoiling is achieved and subsequent machining is facilitated.