Nitrogen protection double-beam lime kiln gas tail pipe device

The utility model relates to the technical field of double-beam lime kilns, in particular to a nitrogen protection double-beam lime kiln gas tail pipe device which comprises a double-beam lime kiln body and a gas header pipe, a plurality of combustion beams are arranged in the double-beam lime kiln body at intervals left and right, and the upper end of each combustion beam is located on the outer side of the upper portion of the double-beam lime kiln body. The lower end of each combustion beam is located on the outer side of the lower portion of the double-beam lime kiln body. The device is reasonable and compact in structure and convenient to use, the gas pneumatic quick switching valve is closed and the interlocked nitrogen pneumatic quick switching valve is quickly opened under the abnormal condition through the newly added nitrogen pipeline and the interlocked control between the gas pneumatic quick switching valve and the nitrogen pneumatic quick switching valve, and the gas pneumatic quick switching val