Welding wire powder coating device

The utility model provides a welding wire powder coating device which is provided with a rotatable roller, the roller is horizontally arranged, the two ends of the roller are open, a welding wire passes through the roller along the axis of the roller through the openings in the two ends, the roller is arranged on a machine frame through a bearing, the roller is driven by a motor, and the motor is arranged on the machine frame below the roller. An output shaft of the motor and the roller are in transmission through a chain or a belt, an air-drying mechanism used for blow-drying welding wires is arranged on one side of the inlet end of the roller, a main body of the air-drying mechanism is of a columnar structure, a passage allowing the welding wires to pass through is arranged in the middle of the air-drying mechanism, an air nozzle connected with an external air source is arranged on the outer wall of the air-drying mechanism, and airflow is blown into the passage through the air nozzle. According to the weld