PURPOSE: A coating apparatus is provided to simplify the manufacturing process of coating apparatus, reducing manufacturing cost and the size of driving shaft, and maintain the quantity of air supplying and exhausting regularly. CONSTITUTION: A coating apparatus comprises: a drum(100) installed rotatably; a shaft transferring the driving force of a motor to the drum; a rotating plate(150) rotating with the drum; a plurality of through-holes formed to the columnar direction of the rotating plate; a fixed plate(300) separated with the rotating plate; an air supply hole on the fixed plate; a hot wind inflow(400) pipe connected to the air supply hole; a air discharge hole on the fixed plate; a hot wind discharge pipe(500) connected to the air discharge hole.
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