Novel combined template for large-opening well wall construction

The utility model discloses a novel combined template for large-mouth well wall construction, which comprises a circular inner mold and a circular outer mold, the inner mold is arranged in the outer mold, and a well wall pouring area is reserved between the inner mold and the outer mold; the outer mold is formed by detachably splicing a plurality of arc-shaped outer mold blocks; and the inner mold is formed by detachably splicing a plurality of arc-shaped inner mold blocks. The outer module comprises an outer wall plate and an outer supporting structure, and the outer supporting structure comprises an arc-shaped cross beam and a vertical beam; the arc-shaped cross beams are fixedly installed at the upper end and the lower end of the outer side of the outer wall plate, the vertical beams are fixedly installed at the edges of the left end and the right end of the outer side of the outer wall plate, installation holes are formed in the vertical beams, and different outer module blocks are fixedly connected throu