Multifunctional armrest

The invention discloses a multifunctional armrest. The multifunctional armrest comprises an armrest underframe, wherein an armrest support inner sleeve is arranged on the armrest underframe; an armrest lifting outer sleeve is sheathed outside the armrest supporting inner sleeve; a steering device is arranged at the top of the armrest lifting outer sleeve; an armrest frame is provided with a sliding device; the sliding device is provided with a rotating device; the top of a steering connector is movably connected with the rotating device; the armrest frame is provided with a plurality of adjusting devices; each adjusting device comprises a stay wire shifting piece; each stay wire shifting piece is connected with a stay wire; the other end of each stay wire is connected with a backrest angleadjusting device, a seat height adjusting device and a seat rotating device. The adjusting devices can control the backrest angle adjusting device, the seat height adjusting device and the seat rotating device through the st