A simple elevator used for maintenance of a bag type dust remover is composed of guide rails, idler wheels, trundles, a storage battery, an electric control cabinet, a lifting machine, a basket, a pulley set, a safe lock and a steel wire rope. The two guide rails are directly fixed on stand columns of a box body of the dust remover. The four idler wheels and the four trundles are arranged on a frame of the basket. A lifting mechanism is composed of the lifting machine, the pulley set, the safe lock and the steel wire rope. The storage battery and a direct current motor are used for supplying power to the lifting machine and a power control system. The power control system is composed of the electric control cabinet and an electric control tool. The simple elevator used for the maintenance of the bag type dust remover shortens a construction period, is convenient and safe to construct, brings great convenience to operators and is low in management cost. When the simple elevator used for the maintenance of the bag type dust remover is not used, the basket can be conveniently moved indoors for storage, and service life is over 30,000 times.