The invention relates to the technical field of a washing machine and especially relates to a pedal pneumatic type washing machine. The pedal pneumatic type washing machine comprises an inner barrel, wherein a shell with a top cover is arranged on the exterior of the inner barrel; an opening is formed in the lowest side at a lateral edge of the shell; a pedal type cylinder is fixed on an opening position; a hand-directional valve is connected with an inward side through an air outlet pipeline; an overflow valve, which is communicated with the pipeline, is arranged on the pipeline connected with hand-directional valve; the hand-directional valve is connected with an air inlet control end of a motor; an air silencer is arranged on the motor; the motor is fixed with the bottom of the shell; an output shaft of the motor is connected with a driving mechanism; the output shaft of the driving mechanism is meshed with an inner gear at the bottom of the inner barrel through an outer gear; a water outlet pipeline is arranged on the opposite side of the opening of the shell; a water inlet pipeline is arranged above the water outlet pipeline; the top cover is connected with the shell through a hinge; a fixing hasp is arranged on the side opposite to the hinge connection; and an interlayer is arranged on the inner side of the shell, so that the inner barrel is isolated from the other parts. The pedal pneumatic type washing machine can achieve the function of combining energy conservation with fitness exercise.