Fire extinguisher for high-rise building

The invention provides a fire extinguisher for a high-rise building. The fire extinguisher comprises a cart and a liquid storage device which is fixed to the cart, wherein the cart comprises a cart body, trundles and crawler wheels, the trundles are arranged at the lower end of the cart body, and the liquid storage device comprises a liquid storage box, a spraying pipe and a spraying gun. The liquid storage box is fixed to the cart body, one end of the spraying pipe is connected with the liquid storage box and then extends to the top end of the liquid storage box, the front end of the sprayingpipe is provided with the spraying gun, a movable rack is arranged on one side of the liquid storage box, and the crawler wheels are movably connected to the liquid storage box through the movable rack. The fire extinguisher for the high-rise building can be used for extinguishment of a fire of the high-rise building, and is little affected by the surrounding environment, the capacity is high, and the fire extinguishing