Disclosed is a drying apparatus including a molding unit configured to mold a raw material to be molded; a pre-drying unit in which a pre-drying convey path is formed to introduce and convey the raw material discharged from the molding unit, and the pre-drying unit heats the raw material moving along the pre-drying convey path so that the raw material is dried; and a main drying unit to further heat the raw material discharged from the pre-drying unit so that the raw material is further dried.