The air is filtered and heated to the top air distributor of the dryer, and the hot air is evenly inserted into the drying chamber. Liquid material through the top of the tower at the top of the high-speed centrifugal atomizer, (rotating) spray into a very fine mist of liquid beads, and hot air in parallel flow in a very short period of time can be dried for the finished product. The finished product is continuously discharged from the bottom of the drying tower and the cyclone, and the exhaust gas is drained by the draft fan.