T-shaped fire tube

The utility model provides a T-shaped fire tube which comprises a fire tube head piece and an injection tube, the fire tube head piece is hollow and is integrally formed with the injection tube, the fire tube head piece is integrally in an arc shape, the distance between the upper tube wall and the lower tube wall in the middle is sequentially decreased towards the two sides, the tube walls at the two ends are attached, and the two attached ends are bent downwards to form connecting pieces. According to the utility model, the spaces on the two sides of the fire tube piece are gradually reduced, so that the air pressure is enhanced, the air output of the whole flame holes is ensured to be the same, namely, the flame power is uniform, and meanwhile, the connecting pieces are fixed on the two sides of the oven, so that the connecting pieces are convenient to use. The overall stability of the fire tube is ensured during gas supply, the internal pressure is stabilized, and the fire outlet stability of the fire tub