Flue gas recycling system capable of realizing micro emission of hot blast stove

The invention relates to a flue gas recycling system capable of realizing micro emission of a hot blast stove. A burner gas inlet and a combustion-supporting air inlet of a first hot blast stove communicate with a gas preheater and a combustion-supporting air preheater of a waste heat recovery station separately, and an inlet of the gas preheater communicates with an outlet of a gas station; an inlet of the combustion-supporting air preheater is connected to the outlet of the combustion-supporting air station, and a flue gas outlet in the lower portion of the first hot blast stove is connected to an inlet of a preheater of the waste heat recovery station; a waste gas outlet of the preheater is connected to an inlet of a purifier, and an outlet of the purifier communicates with a waste gas inlet of a blast furnace blower; a pure oxygen inlet of the blast furnace blower is connected to an oxygenerator, and a waste gas and oxygen mixed outlet of the blast furnace blower communicates with a cold air chamber; a ho