Abstract: The industrial burner comprising a mixing chamber, which is provided with at least one opening into a furnace room, through which opening at least a partially-mixed fuel flow from the mixing chamber dispenses into the furnace room during operation. A combustion air supplier, through which the mixing chamber is supplied with combustion air during operation, and a fuel supplier, with which fuel is introduced into the mixing chamber, are provided. The fuel supplier can switch between a first and a second operation state, wherein in the first operation state, fuel is introduced into the mixing chamber at a first angle, and in the second operation state, fuel is introduced into the mixing chamber at substantially the same axial position with respect to the opening as in the first operation state and at a second angle with respect to the axial direction of the mixing chamber.