The invention discloses a steel structure
welding auxiliary equipment, comprising a
welding mechanical arm, wherein a fume purification mechanism is arranged on the top of the
welding mechanical arm, wherein the fume purification mechanism comprises a fume deflector, wherein a micro
air pump is installed at one end of the fume deflector, wherein one end of the micro
air pump is connected to a
gas transmission pipeline, wherein a fume purification component is arranged at one end of the
gas transmission pipeline away from the micro
air pump, wherein the fume purification mechanism extracts
welding fume through the deflector, the air pump and the
gas transmission pipeline and transmits the
welding fume to a heat exchange box and a gas
decomposition tank, wherein the high-temperature
welding fume is rapidly cooled in the heat exchange box and then transmitted to the gas
decomposition tank through an
exhaust pipe, wherein the cooled welding fume blows an
impeller to rotate and drives a transmission gear, wherein the gear is meshed with a trapezoidal base block, thereby driving a conductive bump on a circuit connector to contact, thereby triggering an electric
sprayer and a warning light to be powered on and operated, wherein the electric
sprayer sprays purification liquid in a powered-on state to decompose and neutralize the welding fume.