Special cooler for purifying tail gas of closed submerged arc furnace

A special cooler for tail gas purification of a closed submerged arc furnace is formed by arranging a core tube of an interlayer in the center of a cooler body of the interlayer, and cooling air is input into the interlayer to accurately control the temperature of tail gas, rotationally input into the cooler body and flowing through the core tube of the interlayer, of the submerged arc furnace. 密闭矿热炉尾气净化专用冷却器，由夹层的芯管设置在夹层的冷却器主体中心结合构成，在夹层内输入冷却空气对旋转输入冷却器主体和流经夹层的芯管的矿热炉尾气温度进行精准控制。