The utility model discloses a long-life tuyere of a blast furnace, which relates to an accessory of an iron-making blast furnace. The long-life tuyere of the blast furnace comprises a flange, an outer sleeve and a spiral air director, wherein the outer edge at the rear end of the flange is connected with the front end of the outer sleeve, and the spiral air director is arranged on the inner side wall of the outer sleeve. The long-life tuyere of the blast furnace is characterized by further comprising an inner sleeve which is made of a high-temperature-resistant and wearproof material, wherein the front end of the inner sleeve is connected with the inner edge at the rear end of the flange, and the rear end of the inner sleeve is connected with the rear end of the outer sleeve to form a complete channel; the spiral air director is arranged between the outer sleeve and the inner sleeve. Compared with the prior art, the long-life tuyere of the blast furnace has the beneficial effects that the inner sleeve made of the high-temperature-resistant and wearproof material is adopted for replacing an original inner wall which is manufactured by two materials through complicated machining steps, so that the structure is simplified, and the performance of the tuyere is improved; the inner side wall of the tuyere is unlikely to damage after being scoured by pulverized coal at a high temperature, so that a purpose of effectively prolonging the service life of the tuyere is realized.