Air supply preheating device of LFP sintering kiln

The utility model discloses an LFP firing kiln air supply preheating device, belongs to the technical field of LFP firing, aims to solve the problems of poor preheating effect and poor heating uniformity during LFP firing, and comprises a firing kiln, a heating chamber is arranged in the firing kiln, and symmetrically arranged supports are arranged in one side of the firing kiln. The multiple supporting brackets are symmetrically arranged, the inner wall of one side of the kiln communicates with two symmetrically-arranged air inlet pipes, and one end of each air inlet pipe communicates with an air injection plate. Through the arrangement of the two air inlet pipes, hot air is added into the kiln, the temperature in the kiln is increased, the preheating function of the kiln is achieved, through the arrangement of the supporting brackets, materials needing to be fired are placed, under the rotation of the rotating motor, the rotating rod drives the supporting brackets to rotate, and therefore the materials can