The invention discloses a novel integrated treatment device for heavy metal wastewater. The novel integrated treatment device for heavy metal wastewater comprises a machine body, wherein a cavity is arranged in the machine body; a slot part is arranged in the middle of a bottom wall of the cavity; a first transferring slot extending rightwards is formed under the slot part; a first rotating slot is formed under the first transferring slot; a first rotating shaft can be rotatably arranged in an end wall of the upper end of the first transferring slot through a bearing; a spline slot communicating with the slot part and the first rotating slot is formed in the first rotary shaft; a first toothed wheel fixedly connected with the first rotating shaft is arranged in the first transferring slot;a second toothed wheel meshing with the first toothed wheel is arranged in the first transferring slot through a second rotating shaft; the upper end of the second toothed wheel can be rotatably arranged in a top wall of the first transferring slot; and the lower end of the second toothed wheel is in power connection with a first electromotor fixedly arranged in a bottom all of the first transferring slot.