The present invention relates to a coffee roaster comprising: a housing； a supporting plate located within the housing, the supporting plate comprising a heating means in a predetermined region； a drum chamber located at one side of the supporting plate within the housing； a first supporting unit for supporting the drum chamber, the first supporting unit being installed to be adjacent to the outer circumferential surface of the drum chamber； and a second supporting unit for supporting the drum chamber, the second supporting unit being installed to be adjacent to the outer circumferential surface of the drum chamber and being spaced apart from the first supporting unit by a predetermined distance. As the drum chamber is rotated by receiving a driving force for rotation from the first supporting unit, the drum chamber can be rotated without being obstructed by the heating means.
