Broadly used in industries requiring high-temperature resistance, non-contaminated environments, or clean heat to meet material demand, this drying and dehumidification method features high heat input temperatures, strong evaporation intensity, low operation costs, significant energy-saving effects, and is suitable for applications in industries such as mineral drying, construction material drying, chemical drying, and fuel drying. The system is composed of heating furnaces, feed equipment, drive equipment, unloading equipment, dust removal equipment, ventilation equipment, control equipment, and drum systems. By rotating, the equipment tumbles the material, ensuring uniform heating and dehumidification, meeting the drying needs of both powdered and granular materials.