Buffer with strong buffering effect for railway vehicle

The utility model discloses a buffer with a strong buffering effect for a railway vehicle. The buffer comprises a shell, a protective shell, a first buffering mechanism, a second buffering mechanism, a dustproof mechanism, a dustproof plug, a first gear, a brush, a first rotating column, a second gear, a third gear, a second rotating column, a fourth gear and a roller. The buffer with the strong buffering effect for the railway vehicle has the beneficial effects that the buffer with the strong buffering effect for the railway vehicle is provided with the dustproof mechanism, a first buffering mechanism and a second buffering mechanism drive a pulley to roll when moving, the pulley drives a fourth gear to rotate through a second rotating column, and the fourth gear drives a third gear to rotate; and a third gear drives a second gear on a first rotating column to rotate, and the second gear drives a first gear to rotate, so that the first gear drives a brush to rotate, the brush is used for cleaning the surface