The roller-type drier (cooler) is necessary for the drying and cooling processes for the fertilizer granulation technology. The equipment adopts an advanced structure of roller plus shoveling plate. After entering the roller, the materials are thrown about in the hot airflow continuously with the action by the shoveling plate. The particle surfaces are in full contact with the hot airflow to achieve an optimal drying effect and complete the process of drying the materials. The equipment is widely applied to produce compound fertilizers, organic fertilizers and other granulated fertilizers. It is rational in design, high in intensity, convenient in application and low in energy consumption, etc.