CLEANING APPARATUS AND SEWAGE TANK THEREOF

A cleaning apparatus, comprising a base plate, a main body, a first bin, a second bin, a first suction device, and a second suction device. The main body is rotatably connected to the base plate; the first bin is disposed on the main body, and the second bin is communicated with the first bin; the first suction device is communicated with the first bin, and the first suction device provides power to drive external liquid into the first bin; the second suction device provides power to drive the liquid of the first bin into the second bin. Due to the existence of the force in the second suction device of driving liquid from the first bin to the second bin, the probability that the liquid flows back into the first bin from the second bin when the cleaning device shakes or tilts or the main body falls down can be reduced, and even the probability is 0, and the probability that the liquid enters the first suction device from the first bin can also be reduced or the liquid can be completely prevented from entering