The present invention discloses a domestic drying device of corn cobs. The domestic drying device of the corn cobs comprises an oven, a first chute, a motor, a handle, a rotary column, an upper half-rotator, a baffle plate, a second chute, a lower half-rotator, a support frame, a dryer, a rotary shaft, two shrinking grooves, two notches, air vents, two rotary plates, lugs and a rotary base seat. Beneficial effects are as follows: by arranging the rotary column between the baffle plate and first chute, the baffle plate can freely rotate according to different use needs of users. By arranging the upper half-rotator and lower half-rotator in the oven and arranging the motor at an upper side of the upper half-rotator, the motor can drive the upper half-rotator via the rotary shaft and then theupper half-rotator drives the lower half-rotator. The upper half-rotator and lower half-rotator are fixed and clamped via the notches and lugs, a driving effect can be achieved and a free shrinking of the rotary plates can be achieved by arranging the shrinking grooves at middle of the rotary plates.