The invention provides a furnace top cooling device for an oxygen-enriched side copper blowing smelting furnace, and belongs to the technical field of copper smelting equipment. The device is characterized by being composed of a plurality of air cooling walls connected in series and a water cooling wall, wherein an air duct is reserved in each air cooling wall; an air inlet and an air outlet are formed in the two ends of each air cooling wall; the adjacent air cooling walls are connected into a whole in series through connecting pipelines; the air cooling wall at the leftmost side is providedwith a row of the air outlets which are opposite to the inside of a furnace body; the water cooling wall is installed close to the air cooling wall at the leftmost side; a flue outlet is formed in theleft side of the water cooling wall; and a furnace top plane composed of all the cooling walls is covered with a layer of fire-resistant ramming material. According to the furnace top cooling devicefor the oxygen-enriched side copper blowing smelting furnace, the air is used for cooling the furnace top cooling device; and the preheated air is used as secondary air so as to effectively reduce heat loss of the furnace body, and the problem that nodulation in the furnace is caused due to the fact that low-temperature secondary air enters the furnace is solved.