The invention discloses a crank type continuous dough kneading device for flour processing. The crank type continuous dough kneading device comprises a bottom plate, a dough kneading frame, an installation frame, a rotary shaft, a gear, an incomplete gear, a first motor, an installation rod, fan-shaped collecting plates, springs, a second motor, a crank, a rod journal, a sleeve, a connection rod,a movable rod and two dough kneading balls. The crank type continuous dough kneading device is provided with the second motor, the crank, the rod journal, the sleeve, the movable rod, the dough kneading balls and the fan-shaped collecting plate, the two dough kneading balls knead dough continuously, the dough kneading efficiency is high, when the dough kneading balls move upwards, the corresponding fan-shaped collecting plates rotate upwards under the effects of springs, the dough is collected, so that dough kneading for the next time is facilitated, the dough can be further kneaded more sufficiently and uniformly, the dough kneading efficiency is improved, the first motor, the incomplete gear and the gear are arranged to intermittently drive the dough kneading frame to rotate a certain angle, so that the dough kneading balls can knead and press the different parts of the dough, thus dough kneading is more sufficient, and the dough kneading speed is increased.