Leather retanning agent drying and decolorizing device

The leather retanning agent drying and decolorizing device comprises a drying box, a reaction kettle and a direct-fired coal hot air furnace, an air blower is communicated with the reaction kettle through a pipeline, ozone generators are fixedly arranged on the left side wall and the right side wall of an inner cavity of the drying box respectively, a photocatalysis plate is fixedly assembled between the two ozone generators, and the photocatalysis plate is fixedly connected with the reaction kettle through a pipeline. An electromagnetic valve is fixedly assembled on the liquid discharging pipe, a purifier communicating with the liquid discharging pipe is fixedly assembled between the supporting legs through a support, a liquid outlet pipe is fixedly assembled at the bottom of the purifier, a control panel is fixedly assembled on the front side wall of the drying box, an atomizing pump is fixedly assembled at the output end of the direct-fired coal hot air furnace, and a liquid outlet pipe is fixedly assemble