A turbo type blow tube of a boiler burner. This blow tube achieves complete combustion and generates no catching noise. In order to achieve the object, this tube comprises a first tube (1) for carrying out first combustion of fuel and a second tube (2) for carrying out re-combustion of the fuel. The first tube (1) reduces in its diameter such that its outlet (10) has a smaller diameter and shows a bottle-neck outer shape. The second tube (2) is connected to the first tube (1) and provided with a plurality of suction ports (3) for introducing combustion air, which is used for re-combustion of the fuel as well as offset of gas expansion pressure at an initial ignition, into the second tube (2) due to pressure difference between the inside and outside of the second tube (2).
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