An automatic level-controlling draining dehumidifier mainly comprises a water pump suction
pipe, a water pump drainage
pipe, an electromagnetic water pump, a water pump fixing cover, an inductive switch fixing part, a water fullness alarming switch, a pumping alarming switch, a drainage quick adapter
assembly, a level measuring floater, a water-collecting tray, an
osculum, an
osculum plug, a compressor and a
heat exchanger; the connection is as follows: one end of the water pump suction
pipe is connected with the water-collecting tray and the other end is connected with the electromagnetic water pump; one end of the electromagnetic water pump is connected with the water pump suction pipe; the other end of the water pump drainage pipe is connected with the quick adapter
assembly; the level measuring floater is arranged below the water pump fixing cover; and the water fullness alarming switch and the pumping alarming switch are fixed by the inductive switch fixing part. The draining method of the dehumidifier comprises the following steps: one electromagnetic water pump is arranged on the side surface of the water-collecting tray; when the dehumidifier is working, the
condensed water is generated by the
heat exchanger and falls into the water-collecting tray; the level measuring floater rises slowly under the effect of
buoyancy with the increase of water quantity so as to measure the height of the water collected in the water-collecting tray; the floater firstly touches the pumping alarming switch with the rising of level and then the electromagnetic water pump starts to work; the quick adapter at the bottom of a
chassis can be connected with a rubber drainage tube with length of about 5M; then the electromagnetic water pump drains the water inside the water-collecting tray out of the room through the water pump suction pipe and the water pump drainage pipe; if the floater touches the pumping alarming switch firstly but the electromagnetic water pump does not work.