Novel process of steelmaking deoxidization by utilizing precipitator dust of refining furnace

The invention provides a novel process of steelmaking deoxidization by utilizing precipitator dust of a refining furnace, comprising the steps of 1, under the circumstance that the blowing process of a converter or an electric furnace is finished, the carbon end-point composition W[C] %=0.1-0.6% and the tapping temperature is 1580-1620 DEG C during the tapping, connecting the bottom to blow argon gas 2-4min before the tapping and carrying out gas stirring at the speed of 150-480L/min; and 2, after the tapping of the liquid steel in the converter or the electric furnace, starting to continuously add tons of steel aluminium blocks or alloy to carry out deoxidization, and when the quantity of the liquid steel is 7-17t in a steel ladle, starting to add the precipitator dust of the refining furnace along with the steel flow of the tapping of the furnace, wherein the adding quantity of the steel aluminium blocks or alloy is confirmed according to carbon content of the liquid steel before the tapping, the tapping ti