An organic fertilizer hot air dryer is a type of equipment used to dry organic materials in the production of organic fertilizer. It typically consists of a heating system, a drying chamber, a hot air circulation system, and a control system. The heating system provides heat to the drying chamber, which contains the organic materials to be dried. The hot air circulation system circulates hot air through the chamber, allowing the organic materials to be dried evenly. The control system regulates the temperature, humidity, and drying time of the dryer. The use of a hot air dryer can significantly reduce the moisture content of organic materials, making them easier to store and handle. It can also improve the quality of the final organic fertilizer product by reducing the risk of bacterial and fungal growth during storage.