Corridor floor structure for outside corridor locomotive

The invention discloses a corridor floor structure for an outside corridor locomotive. The corridor floor structure comprises floors. The floors are supported on a frame by floor beams and are laid on the outer sides of side walls of the locomotive, and water flowing channels are respectively formed between the floor beams and the side walls of the locomotive and between the floor beams. The corridor floor structure has the advantages that the corridor floor structure is simple and is reasonable in design, water can be smoothly drained out of the locomotive via the water flowing channels and water collecting grooves, and accordingly facilities such as cables and pipelines can be prevented from being immersed and corroded; the floors are made of aluminum alloy, are light and are convenient to mount and detach.