Cast-in-place concrete wall surface earlier-stage curing device and method

The invention provides a cast-in-place concrete wall surface earlier-stage curing device comprising a water supplying pipe. The side wall of the water supplying pipe is attached and fixed to the innerside wall of an internal corner formwork at the top of a concrete wall, and the attaching area of the side wall of the water supplying pipe and the inner side wall of the internal corner formwork isinternally provided with a water out seam parallel to the center axis of the water supplying pipe. An arc-shaped opening is formed in the other pipe side wall, opposite to the pipe side wall where thewater out seam is formed, of the water supplying pipe, the water supplying pipe is internally provided with a valve capable of opening/closing the water out seam, and the valve comprises a circular-arc-shaped steel plate and a handle fixed to the circular-arc-shaped and provided with the free end extending out of the arc-shaped opening. The outer wall of the circular-arc-shaped steel plate and the inner wall of the water s