Sintering furnance

A sintering furnace comprising a furnace body and a lifting device, wherein the furnace body comprises a furnace chamber and a furnace mouth, the furnace chamber is connected with the furnace mouth, wherein the sintering furnace further comprises a sealing member provided at the lifting device;

• when the sintering furnace is in a loading or unloading condition, the sealing member blocks the furnace mouth;
• wherein the lifting device comprises a lifting platform and a driver for driving the lifting platform to go up and go down, the lifting platform is a stepped lifting platform with an upper end smaller than a lower end, the upper end and the lower end are each provided with an upper portion and a lower portion;
• a lower end of the sealing member is fixedly connected to the upper portion of the upper end of the lifting platform;
• when the sintering furnace is in a sintering condition, the upper end of the lifting platform is inserted into the furnace mouth, and a step surface of the upper portion of the lower end of the lifting platform abuts against an outer surface of the furnace body.