The invention belongs to the technical field of metallurgy, and particularly relates to a pig-iron ladle environment-friendly energy-saving method for effectively removing smoke dust. The pig-iron ladle environment-friendly dust removal method comprises the following steps: adding 0.5-1kg/ton iron deoxidizer into the pig-iron ladle while adding molten iron; and after transferring the molten iron in the pig-iron ladle out, spraying water to the pig-iron ladle opening for 8-15 seconds. The pig-iron ladle environment-friendly dust removal method inhibits the smoke dust, which is generated when the molten iron is added into the pig-iron ladle, from generation from the source, and effectively reduces the smoke dust generated when the molten iron in the pig-iron ladle is added into a converter, thereby reducing the environmental pollution. The method can effectively lower the burning loss of molten iron carbon in the iron addition process and enhance the chemical heat of the molten iron. The method is simple and easy to implement, can save the cost, and has favorable effect.