The present invention is the burner body 30 is installed in the center, the outer cylinder 10 having an air supply port 11 and the air outlet 12, the inner cylinder 20 installed inside the outer cylinder 10, Charcoal barrel 35 installed on the upper surface of the burner body 30, the upper plate ring 40 is installed over the outer cylinder 10, and the lower locking jaw 44 of the upper plate ring 40 ) The oil sump barrel 45 to be installed on the plate, the baffle plate 50 installed on the catching jaw 46 of the oil sump barrel 45, and the cover 55 to be installed on the upper plate ring 40. Roster body (A) having a; Air purification means (B) installed at a lower portion of the roaster body (A); A motor device 70 for forcibly suctioning and discharging contaminated air in the roaster body A to the air purifying means B, and an adjusting device 75 for controlling the motor device 70 and the burner body 30. Forced circulation and control means (C) provided, wherein the air purification means (B) is formed in the form of an annular pipe over the entire lower surface of the roaster body (A) excluding the center, the outer cylinder (10) Air supply port 11 of the burner body 30 is formed over the entire circumference, the gas charcoal combined ignition that is installed air collector 80 surrounding the air supply port 11 and the burner body 30 is installed It relates to the formula roaster (1).
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