The invention discloses a printing and dyeing wastewater recycling device. The printing and dyeing wastewater recycling device comprises a water storage tank, a water suction pump, a liquid level meter, a separating tower and a water outlet pipe, wherein one end of the water suction pump is communicated with the lower part of the water storage tank, and the other end of the water suction pump is connected with the upper part of the separating tower through a pipeline; the bottom end of the liquid level meter is communicated with the lower part of the separating tower; the separating tower is provided with a conical tower top and a tower bottom; the top end of the tower top is extended upwards to form a chimney member; an oil outlet pipe is communicated with the bottom of the chimney member; a mud outlet pipe is connected with the bottom end of the tower bottom; a first switch is arranged on the mud outlet pipe; the water outlet pipe is connected with the lower part of the separating tower; a second switch is arranged on the water outlet pipe. The printing and dyeing wastewater recycling device is simple in structure without complicated facilities or other power, does not consume other energies, is low in manufacturing cost, small in occupation space, simple to operate, free from maintenance, and good in oil outlet effect, and can discharge mud completely.