Narrow roadway stacking forklift

The utility model discloses a narrow roadway stacking forklift which comprises a forklift body frame, a walking unit, a portal frame assembly, a lifting platform, a telescopic pallet fork mechanism and a swing arm supporting mechanism, and the lifting platform is movably connected to the portal frame assembly. The telescopic pallet fork mechanism is arranged on the lifting platform and can stretch out of the cargo carrying area along any one of the openings. The two swing arm supporting mechanisms are movably arranged at the bottom of the vehicle body frame respectively, and any swing arm supporting mechanism is provided with an extending position extending out of the corresponding side of the swing arm supporting mechanism and a retracting position stored at the bottom of the vehicle body frame. The swing arm supporting mechanism on the corresponding side stretches out and is switched to the stretching-out position for supporting, and the other swing arm supporting mechanism is still located at the retractin