The invention relates to a backpack multifunctional peanut combine belonging to the technical field of peanut harvesting machine structures and comprising a fixed stand fixedly connected with a tractor gearbox and a tractor semiaxle and a stand hinged with the fixed stand. The fixed stand and the stand are connected by a semi-hanging hinging transmission shaft; a peanut bin which can turn on one side to unload peanuts is arranged above the fixed stand; a peanut harvesting device is arranged on the stand; the peanut harvesting device is in transmission connection with the semi-hanging hinging transmission shaft by a clamping chain and a fruit picking roller transmission case; the front end of the stand is glidingly connected with a nearside divider and an excavating gear; peanut hoisting equipment is movably connected between the stand and the fixed stand; and the peanut hoisting equipment and the semi-hanging hinging transmission shaft are in transmission connection. The peanut combine has compact structure, can apply peanut stems to farmland, effectively utilizes resources and can realize that a single machine carries out peanut combined harvest of more than four lines (two ridges) at the same time, thereby having the advantages of high work efficiency and good fruit picking quality.