Tubular decomposing furnace for lithium iron phosphate recovery slag

The invention discloses a tubular decomposing furnace for lithium iron phosphate recovery slag, and relates to the technical field of pyrogenic process phosphorus recovery. Comprising a decomposing furnace, supporting legs are installed at the bottom of the decomposing furnace, a feeding hopper is installed at the top end of the decomposing furnace, a partition plate is installed between the inner walls of the decomposing furnace and divides the decomposing furnace into a crushing cavity and a stirring cavity, a crushing assembly is rotationally installed in the crushing cavity, and a stirring assembly is rotationally connected into the stirring cavity; and the stirring assembly is used for stirring the crushed lithium iron phosphate. By arranging the crushing assembly, the lithium iron phosphate recovery slag can be uniformly crushed, so that the particle size of the material is more uniform, the heat conduction performance of the material in the furnace can be improved, the temperature distribution in the f