This devise relates to a heating device of a coffee roaster, drum roasting coffee to the exit via the fan unit of the heat from the bottom heater is mounted on the lower radiant heat is applied to the outgoing or to prevent the development of heat loss in order to be able to enhance the efficiency Sucking the cylindrical drum and the outside of the air rotated by the motor is mounted between the blowing fan for spraying in a lower portion of the drum in the heating apparatus of a coffee roaster to ensure that the heat transfer in the drum is emitted by the heating heater, The heating device is from 3 to 8 hot-wire heater and is made of a quartz tube one end of which is open ceramic fixing portion fixing a power cable to be connected to the inner mounting The top surface is opened and the bottom plate are disposed a plurality of first ventilation holes predetermined distance from side to side and extending in the longitudinal direction has a shape of a square, a front and a back plate is one that is recessed into the lower portion to rotate close to the outer surface of the drum is formed in arc shape, the front and back plate of any of the ceramic heater and the first bracket is mounted to a fixed portion 3-8 of the fixing recess formed in the upper section to the lower portion of the formation Left to right, it is formed which can be joined width as having the plate-like corresponding to the inner space of the first bracket forward and backward has a bent shape in the vertical top and bottom surface spaced apart by a bottom face and the top of the first bracket and a back and a bent front are respectively fixed at a position spaced inwardly of the front and back surface of the first bracket, a second plurality of which extends in the longitudinal direction of the blowing hole vertically upper of both the first blowing hole mid-point located in the lower left and right at a predetermined distance and arranged to be located, the front and the back of the second to a
