High-speed low-nitrogen burner with flat flame

The utility model discloses a high-speed low-nitrogen burner with flat flames, which comprises an air box, an air pipeline is arranged in the air box, a plurality of through holes are arranged on the air pipeline, a central gas gun and an ignition gun are arranged in the air pipeline, the front end of the central gas gun and the front end of the ignition gun are arranged on a flame stabilizing device in a penetrating manner, and the flame stabilizing device is arranged on the flame stabilizing device. The flame stabilizing device is arranged at a port of the air pipeline, the port of the air pipeline is arranged at a port of the air box, a combustion-supporting box is arranged at the port of the air box, a rectangular spraying cavity connected with the port of the air box is formed in the combustion-supporting box, and two inclined faces enabling a port of the rectangular spraying cavity to be gradually shrunk are symmetrically arranged in the rectangular spraying cavity. A plurality of gas pipelines are arra