Movable X-ray machine

The invention discloses a movable X-ray machine, and belongs to the field of medical apparatuses. The movable X-ray machine comprises a machine body and wheels, and is characterized by further comprising wheel carriers, water tanks, floaters, vertical shafts and gear tubes, wherein a wheel axle of each wheel is mounted at the lower end of one wheel carrier; one vertical shaft is arranged on the inner side of each wheel carrier; a fixing block connected with the vertical shaft is arranged on the wheel carrier; the upper end of the vertical shaft is positioned inside a threaded hole in the machine body; the gear tube is arranged in a position, below the fixing block, of the vertical shaft; an upper vertical bevel gear and a lower vertical bevel gear are arranged on each gear tube; a horizontal bevel gear is arranged at the inner end of the wheel axle; a cylinder is arranged on each gear tube; one water tank is arranged on the inner side of each vertical shaft; the water tank is fixed to the machine body; the fl