Medium-high heat value gas burner

The utility model discloses a medium-high heat value gas burner, which consists of an end cover, a combustible gas central tube, a barrel, a cone, a support rod, a baffle, an adapter tube and a pup joint. The medium-high heat value gas burner is characterized in that the combustible gas inlet end of the combustible gas central tube is provided with the rectangular barrel and a tube body which is connected with the cone; the combustible gas outlet end of the combustible gas central tube is provided with the baffle; one side of the rectangular barrel is provided with the adapter tube; the adapter tube is an air inlet; and the top end of the cone part of the rectangular barrel is provided with the pup joint. The whole burner is of a sleeve-type structure. Combustible gas enters from the central tube, and enters a combustion chamber in two paths from the end part of the front face and the side face of the burner; air enters a spin chamber between an inner barrel and an outer barrel along a tangential direction, a