Concrete pipe gallery inner mold in-place and demolding method

The invention discloses a concrete pipe gallery inner mold in-place and demolding method. The concrete pipe gallery inner mold in-place and demolding method comprises an inner mold frame and a liftingtrolley used for moving the inner mold frame in place, the inner mold frame comprises a portal frame, movable stand columns are arranged on the two sides of the portal frame, side mold plates are installed on the movable stand columns, and the movable stand columns are connected with the portal frame through translation drivers; a top mold plate is mounted at the top of the portal frame; stand column lifting supporting legs are arranged at the bottoms of the movable stand columns, and the height of the whole inner mold frame is adjusted through the stand column lifting supporting legs; and bottom middle supporting legs capable of rising and falling are further arranged at the bottom of the portal frame. During construction, the lifting trolley lifts the inner mold frame to move and be preliminarily in place, the