Portable multifunctional wrench

The invention belongs to the technical field of power systems. A portable multifunctional wrench is characterized in that the portable multifunctional wrench comprises a wrench head, a bendable pipe and a handle, the wrench head is connected with the handle through the bendable pipe, the wrench head comprises a cylinder body, steel needles, a cover plate and springs, the lower part of the cylinderbody is provided with a cavity, a plurality of steel needle telescopic through holes are formed in the upper part in the cylinder body, the lower ends of the steel needle telescopic through holes communicate with the cavity, the number of the steel needles is the same as that of the steel needle telescopic through holes, all the steel needles are located in the cylinder body, the upper ends of the steel needles penetrate into the steel needle telescopic through holes, the springs are located in the steel needle telescopic through holes, the lower ends of the springs are fixedly connected withthe upper end faces of th