Air inlet and igniter structure of rare earth concentrate roasting rotary kiln

The utility model relates to the technical field of rare earth smelting and roasting production, in particular to a gas inlet and igniter structure of a rare earth ore concentrate roasting rotary kiln, and solves the problems that in the prior art, a gas inlet mode of the rare earth roasting rotary kiln is low in natural gas utilization rate, high in damage rate of thermal insulation materials and low in cost. And the service life of a furnace body for roasting the rotary kiln body is shortened. The plurality of gas pipeline connecting ports are formed on one side of the roasting rotary kiln body and are positioned below the combustion center; each gas pipeline connector is connected with one natural gas pipe; the natural gas pipe is located at one end of the roasting rotary kiln body and connected with a natural gas source. Wherein part of the natural gas pipes are constructed to be bent, so that flames formed by the combustion ends of the natural gas pipes face the position below the combustion center. 本实用新