Coil base circulating fan motor for full-hydrogen bell-type furnace

The utility model relates to the field of a full-hydrogen bell-type furnace, in particular to a coil base circulating fan motor for a full-hydrogen bell-type furnace. The coil base circulating fan motor comprises a motor shaft, a motor rotor, a bearing and a water box and is characterized in that the diameter D of the motor shaft is 100 to 110mm; the width L of the water box is 150 to 160mm; and the bearing translates towards an impeller to be positioned between the water box and the motor shaft. Compared with the prior art, the coil base circulating fan motor has the beneficial effects that (1) the shaft extension diameter of the motor shaft is thickened and the bearing translates towards the side of the impeller to reduce the shaft extension length, so that the rigidity of the motor shaft is reinforced and the vibrating value of the motor shaft can be controlled below 3.5mm/S; (2) fault short-stop time of the motor is reduced, yield is improved, and energy consumption is reduced; and (3) after the motor is