Pit -type nitriding furnace

The utility model discloses a pit -type nitriding furnace, the induction cooker comprises a cooker bod, stove courage and bell, agitator motor is installed to the top of bell, agitator motor's pivot is passed the one end that the bell stretched into in the stove courage and is installed stirring vane, install nitrogenize gas inlet and nitrogenize gas outlet on the bell, the below of bell is provided with the mount pad, the periphery fixed mounting of mount pad has air -cooled ware, the below fixed mounting of mount pad has the kuppe, fixed mounting has open ventilating duct about in the of in the stove courage, the bottom of kuppe is connected with the top of ventilating duct, it forms the nitrogenize gas passage to leave the clearance between ventilating duct and the stove courage, it forms air cooling passage to leave the clearance between the inner wall of stove courage and furnace body, the air -blower is installed to the bottom of furnace body, the output of air -blower communicates to air cooling passag