Household dehumidifier with air purification and variable new air volume distribution functions

The invention discloses a household dehumidifier with air purification and variable new air volume distribution functions. The household dehumidifier comprises a dehumidifier body. The dehumidifier body is divided into an upper layer and a lower layer which are mutually separated. The upper layer is sequentially divided into a mixing area, a dehumidification area and a purified air supply area from left to right. The mixing area comprises a mixing chamber and a coarse effect filtering layer positioned on the right side of the mixing chamber, the mixing chamber further communicates with a freshair pipe and an air return pipe arranged on the left side of the mixing chamber, and the fresh air pipe and the air return pipe are in parallel. The dehumidification area is sequentially provided with an evaporator, a dehumidification chamber, a condenser and a cooling water baffle from left to right, and the bottom end of the dehumidification area is paved with a condensed water disk. The purified air supply area is seq