The utility model relates to a liquid water disposal technical field especially relates to a device for liquid water disposal, including combustor and sleeve pipe, the sleeve pipe is followed the axial direction of combustor set up in in the combustor, sheathed tube one end is located the blowout end of combustor, other end connection waste liquid source, the blowout end of combustor passes the kiln hood cover of kiln and lets in in the negative pressuren zone of kiln. The utility model discloses set up the sleeve pipe and let in the route of kiln as the waste liquid in the combustor, directly spout the waste liquid by the blowout end of combustor the oxidation of gasifying in the negative pressuren zone of kiln to waste liquid after preventing to gasify is because of the gap effusion of kiln internal gas pressure fluctuation along existence between kiln hood cover or kiln hood cover and the kiln, environmental protection, personnel's safety around guaranteeing. Simultaneously, carrying out the sleeve pipe setting in current combustor, being applicable to in the occasion that possesses kiln industry on the one hand, on the other hand has saved the inner space of kiln, and it is convenient to use, low cost.