The utility model discloses a bell -type bright annealing furnace, include furnace body and sealed crimping in the last furnace body of its top down, the internal diameter of two furnace bodys is unanimous, the pillar has been arranged down in the furnace body, the upper end of pillar is connected with the bed plate that the level was arranged, the work piece is covered by the cylindric cover body on arranging the bed plate in, the bottom of furnace body is connected with circulating fan down, the heating member has been arranged in the cavity between the cylindric cover body and the last furnace body, condenser tube has been arranged in the furnace body, the bottom of furnace body is connected with the inert gas admission valve down, the top is connected with the gravity relief valve, the lower extreme of furnace body has the support frame down. Circulating fan forces to form the circulated air in making the furnace body, during the heating through high wind direct the heat of heat -generating body take away and send the heat to the work piece of treating the heating along the wind channel on accomplish the heat exchange, keep warm and accomplish the post heating and stop, the cooling water lets in in condenser tube, the circulated air is taken away the heat on the high temperature work piece and is realized cooling off. The heating is fast, efficiency are high, the cooling is quick, temperature homogeneity is good.