The non-fried instant noodle production line is equipped with a hot-air dryer to dry the square noodle blocks. It is an automatic hot-air drying instant noodle line configured with three-layer dryer, five-layer dryer or seven-layer dryer upon request. Through chain transmission, the noodle block in the noodle drying mold is dried in the process of running in the dryer, and the water is discharged out of workshop.