Drying pipeline, drying device and drying method

The invention relates to the technical field of building materials and chemical engineering, and provides a drying pipeline, a drying device and a drying method.The drying pipeline comprises a pipeline body and a drainage piece, the pipeline body comprises an ascending section and a falling section, and the ascending section is connected with the falling section; an air inlet is formed in the lower end of the ascending section, and a discharge port is formed in the lower end of the descending section; the drainage piece is arranged on the ascending section, the drainage piece is provided with a feeding port, and the feeding port is communicated with the ascending section; the drainage piece is used for guiding the feeding direction of materials, so that the included angle between the feeding direction and the direction of airflow flowing through the ascending section is larger than 90 degrees. According to the drying pipeline, the drying device and the drying method, materials enter the falling section from t