A barbecue fire making machine comprises a box body, a blower and a water pump; a barbecue stove and a chimney are arranged at the upper end of the box body; a first water spray box is arranged at the middle part of a first filter chamber of the box body; a second water spray box is arranged at the middle part of a second filter chamber of the box body; a water reservoir is arranged at the bottom of the box body; the first water spray box, the inner wall of the first filter chamber and the water reservoir define a primary filter air chute; the second water spray box, the inner wall of the second filter chamber and the water reservoir define a secondary filter air chute; the barbecue stove is positioned at the initial end of the primary filter air chute; the air inlet of the blower is communicated with the tail end of the primary filter air chute; the air outlet of the blower is communicated with the initial end of the secondary filter air chute; the chimney is positioned at the tail end of the secondary filter air chute; the water inlet of the water pump is communicated with the water reservoir; and the water outlet of the water pump are respectively communicated with the first water spray box and the second water spray box through branch water pipes. The barbecue fire making machine has the advantages of good security, environmental friendliness and simplicity in operation and can be used indoors.