The invention provides an inserted internal circulation centrifugal fan for high temperature and belongs to the technical field of fan equipment. The inserted internal circulation centrifugal fan forhigh temperature comprises a fan volute, a heat preservation layer fixing framework, a motor fixing flange, a heat preservation material, a motor and an impeller. The heat preservation material is composed of a fixed part and a movable part which are combined, and fills the heat preservation layer fixing framework, so that heat conduction is effectively blocked, the heat insulation effect is improved, and the problem that the temperature of the surface of a furnace body and the connection position of a fan and a furnace body are too high is solved; and the fan volute and the motor fixing flange are arranged on the two sides of the heat preservation layer fixing framework separately, the motor is fixed to the motor fixing flange, and a rotary shaft of the motor penetrates through the heat preservation layer fixing framework and then extends into the fan volute to be connected with the impeller, so that pulling-insertion type installation of the impeller, the motor and other structures is achieved, disassembly can be quickly achieved, the problem of assembly and disassembly inconvenience is solved, and later maintenance and repair are facilitated.