Quickly assembled polluted water temporary storage device

The utility model discloses a fast assembly polluted water temporary storage device, including: basic unit and seepage-proofing unit, basic unit includes bottom unit and L-shaped bookend device, bottom unit includes a plurality of movable plate, every two adjacent movable plate adopts buckle connection mode to splice, the L-shaped bookend device is connected with the bottom unit, the L-shaped bookend device is connected with the bottom unit, and the seepage-proofing unit is connected with the bottom unit. Every two adjacent L-shaped bookend devices are connected through a buckle to form a side wall, the bottom units are arranged on the horizontal portions of the L-shaped bookend devices, and the bottom units are connected with the L-shaped bookend devices. By means of the mode, the polluted water temporary storage device capable of being rapidly assembled is used for fixing and preventing seepage of a polluted underground water temporary storage pool and protecting the side wall and the bottom of the temporar