Discarded object hangs down nitrogen heat treatment device

The utility model discloses a discarded object hangs down nitrogen heat treatment device, it includes first discarded object entry and second discarded object entry, and first discarded object entry linkage has at least one pyrolysis gas ization stove, and second discarded object entry linkage has the rotary kiln, discarded object hangs down nitrogen heat treatment device still includes second combustion chamber, second combustion chamber includes first flue gas entry and second flue gas entry, the exhanst gas outlet of pyrolysis gas ization stove passes through two pipe connection in second combustion chamber, and the exhanst gas outlet of rotary kiln passes through pipe connection in second combustion chamber, a pipe connection of the exhanst gas outlet of pyrolysis gas ization stove is in second flue gas entry, and another pipeline of the exhanst gas outlet of pyrolysis gas ization stove is connected jointly with the pipeline of the exhanst gas outlet of rotary kiln and is entered the mouth in first flue g