The document discusses a chicken manure rotary dryer. The dryer is used to dry chicken manure to reduce the water content from 70% to 13%, allowing it to be used as an additive in organic fertilizers. The dryer operates continuously to efficiently dry the manure through rotation and resistance. It has a high production capacity and drying efficiency while using limited energy. The dryer reduces environmental pollution from chicken manure and allows the dried manure to be used for fertilizers, fish and animal feed, and mushroom cultivation.