High-performance fuel gas injection pipe

The utility model discloses a high-performance fuel gas injection pipe which comprises an air accelerating pipe, the air accelerating pipe comprises a horn pipe with two communicated ends and a straight pipe connected with the horn pipe in a sealing mode, one end of the horn pipe is a flaring end, the other end of the horn pipe is a necking end, and the flaring end is communicated with the straight pipe. The necking end of the conical pipe is connected with the necking end of the horn pipe; the positioning supporting frame comprises a supporting pipe and rib plates, the rib plates are fixedly arranged on the periphery of the supporting pipe, and the ends of the rib plates are fixed to the edge of the straight pipe; the two ends of the air inlet pipe are communicated, the air inlet pipe comprises an air spraying pipe, and the air spraying pipe is installed in the supporting pipe in a penetrating mode. The utility model has the advantages that the cross section of the cross-shaped positioning support frame is l