Coating and drying device for waterproof roll production

The utility model belongs to the technical field of energy conservation and environmental protection, and particularly relates to a coating and drying device for waterproof roll production. Comprising a coating liquid containing box, a water bath box and a drying box, a waterproof roll sequentially passes through a first supporting roller, a third supporting roller and a second supporting roller to enter the drying box, a coating liquid adding tank is arranged at the top of the coating liquid containing box and communicates with the coating liquid containing box through a pipeline, and an electromagnetic valve is arranged on the pipeline; an upper liquid level sensor and a lower liquid level sensor are arranged in the coating liquid containing box, the upper liquid level sensor, the lower liquid level sensor and the electromagnetic valve are all connected with an external controller, the coating liquid containing box is sleeved with a water bath box, a water inlet pipe and a water outlet pipe are arranged on