Gas-powder dual-fuel burner

The utility model discloses a gas-powder dual-fuel burner, the gas-powder dual-fuel burner comprises a burner body, the burner body is provided with a primary air channel, a combustion stabilizing cavity, a fuel gas channel, a fuel gas spray hole, a secondary air channel, a pre-combustion cavity and a tertiary air channel, an included angle is formed between the fuel gas spray hole and the secondary air channel, the pre-combustion cavity is located at the downstream of the combustion stabilizing cavity, and the tertiary air channel is located at the downstream of the combustion stabilizing cavity. The primary air can form a primary air backflow area at the outlet of the stable combustion cavity, the secondary air can form a secondary air backflow area in the pre-combustion cavity, and the secondary air backflow area and the primary air backflow area intersect. Under the action of the primary air backflow area and the secondary air backflow area, fuel can be quickly and stably ignited, so that more circulating