Smoke screen wall convenient to replace

The utility model discloses a smoke-blocking vertical wall convenient to replace, which relates to the technical field of smoke-blocking vertical walls and comprises a fixing frame, a reel is rotatably connected inside the fixing frame, and the reel and the fixing frame are rotatably connected through two groups of rotating shafts. According to the utility model, the mounting groove is formed in the center inside the reel, and the electromagnet is arranged inside the reel and at one end of the mounting groove, so that if the vertical wall is replaced, only the electromagnet needs to be electrified, the magnetic field which attracts each other between the electromagnet and the magnet sheet disappears, and the vertical wall can be replaced. Then the electromagnet and the magnet piece are separated from the clamping and fixing effect on the top of the vertical wall, the waste vertical wall is taken down, then after the top of a new vertical wall is directly inserted into the mounting groove, the electromagnet is