The dust and gas burner contains a housing with a box for supplying central air from a pipe for supplying liquid or gas fuel for ignition, a supply box secondary air, a box with an annular channel for supplying a mixture of dust low-reaction fuel and primary air, a gas collector for supply highly reactive gas fuel. In the ring channel for feeding the sawdust mixture of low-reaction fuel and primary air are placed and connected to the gas collector tubes for supplying high-reactivity gas fuel, at the output ends of which are made cylindrical stabilizers with closed ends and niche recesses. From the side surfaces of the niche recesses of these stabilizers through a system of holes by immersion perpendicular to the flow of the mixture of pulverulent low-reaction fuel and primary fuel air flowing around the cylindrical stabilizer is supplied with highly reactive gas fuel.
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