Large-size push plate nitrogen atmosphere protection sintering furnace

The utility model relates to the technical field of sintering furnaces, and discloses a large-size push plate nitrogen atmosphere protection sintering furnace which comprises a furnace body, a large-size push plate, rotating assemblies and a cooling assembly, the rotating assemblies are arranged in the two sides of the large-size push plate, and the cooling assembly is arranged in the large-size push plate. According to the large-size push plate nitrogen atmosphere protection sintering furnace, sliding of the large-size push plate is achieved through the protruding feet and the sliding grooves so that large-size materials can be conveniently pushed in and pushed out so as to be conveniently sintered, heat can be well prevented from being transmitted to a condenser under the action of the first heat insulation block and the second heat insulation block during sintering, and therefore the utilization rate of the heat is guaranteed; when cooling is needed, a small motor rotates to drive a rotating belt to rotate