The belt dehydration filter is a continuous solid-liquid separator tailored for tuber starch processing, mainly for cassava fiber dewatering. It has a sturdy structure composed of frame, feed hopper, filter belt system, transmission unit, discharge scraper, wastewater tank and belt cleaning mechanism. Equipped with air compression and electric control systems, it ensures stable continuous production. Featuring easy operation, low noise, low energy consumption and simple maintenance, the machine supports long-term steady operation to meet standardized dewatering demands of starch factories.