Tail gas emission structure and reduction furnace

The invention discloses a tail gas emission structure and a reduction furnace, the tail gas emission structure comprises a connecting body, the connecting body is provided with an annular hole, and the annular hole is provided with a first opening and a second opening; the first ends of a plurality of tail gas branch pipes are communicated with the first opening of the annular hole; the second ends of the tail gas branch pipes are communicated with a collecting pipe; one end of a tail gas main pipe is communicated with the collecting pipe. The tail gas emission structure is applied to the reduction furnace, the second opening of the connecting body is communicated with an exhaust hole in the bottom of the reduction furnace, tail gas in the reduction furnace enters the annular hole through the exhaust hole, the tail gas is balanced through the annular hole, and gas in the annular hole enters the collecting pipe through the tail gas branch pipes; gas flows in different tail gas branch pipes can be balanced in t