The invention discloses a dust remover used for a thermal power plant. The dust remover is used for solving the problem of severe raise dust of the thermal power plant. The dust remover comprises a first support, a second support, a rotating disc, a dust storage box, a dust sucking hopper and a fan. The rotating disc is placed horizontally and rotatably installed in an inner cavity of the first support. A rotation assembly used for driving the rotating disc to rotate is arranged in the inner cavity of the first support. A supporting rack is arranged at the top of the rotating disc. A swinging body and an angle adjusting assembly used for driving the swinging body to swing are arranged on the supporting rack. The dust sucking hopper is arranged on the swinging body. The second support is fixed to one side of the supporting rack. The fan is arranged in the second support. A dust flow channel is arranged between the fan and the dust sucking hopper. A guide pipe is arranged at the other end of the fan. The free end of the guide pipe stretches into the dust storage box located in an inner cavity of the second support. By means of the dust remover used for the thermal power plant, dust in air of the thermal power plant can be removed , and the dust removing efficiency is high.