The invention relates to a multifunctional moveable spanner. The multifunctional moveable spanner comprises a handle and a head part, wherein the head part comprises a fixed spanner opening, a moveable spanner opening, a sliding groove, an accommodating groove and a worn nut, wherein the fixed spanner opening is formed in one end of the head part; a tooth row is arranged at the bottom of the moveable spanner opening and is glidingly arranged in the sliding groove; the worn nut is arranged in the accommodating groove and is meshed with the tooth row; a hammer head is arranged on the side, opposite to an occlusal surface, of the fixed spanner opening; teeth are formed on the occlusal surface of the moveable spanner opening; a hollow groove opening is formed in the handle. The multifunctional moveable spanner is light and flexible in structure, convenient to use and high in practicability, is suitable for popularization and application, and the working efficiency is improved.