Emergency flood control wall for urban flood control

The invention discloses an emergency flood control wall for urban flood control, which comprises a bottom plate, a baffle plate, a first splice plate, a second splice plate, a winding assembly, a supporting plate, a rotating shaft, a first handle, an air bag, a reinforcing rib, a connecting piece, an air delivery pipe, a pipe cover, a first compression roller, a first bearing, a first mounting seat, a stretching assembly and a water level alarm assembly, the air bag is adopted to replace an aluminum alloy wall, the cost is reduced, meanwhile, the air bag can be rapidly wound through the winding assembly, and installation and arrangement are convenient; the height of the air bag wall body can be changed through the stretching assembly, the assembly is easy to operate, a large amount of time can be saved, the assembly is provided with a sealing structure, and flood infiltration can be effectively prevented; by means of the water level alarm assembly, an alarm can be given in time when the water level exceeds th