Landfill　leachate　contains　high　concentrations　of　toxic　and　harmful　substances.　A　combination　of　membrane　separation　and　biological　treatment　process　is　commonly　used　for　landfill　leachate　treatment,　but　the　capital　and　operation　costs　are　very　high.　To　simplify　the　treatment　process,　membrane　distillation　was　directly　investigated　in　landfill　leachate　treatment　to　eliminate　the　adverse　effects.　The　rejection　performance　was　systematically　studied,　and　both　membrane　fouling　and　membrane　wetting　were　investigated.　Besides,　the　feasibility　of　MD　treatment　driven　with　the　on-site　waste　heat　was　evaluated.　The　results　show　that　the　landfill　leachate　could　be　efficiently　purified　by　MD　with　excellent　rejections　of　TOC　(＞98.93%),　phosphate　(＞99.19%),　and　metal　irons　(＞99.95%)　in　all　tested　conditions,　and　the　membrane　was　not　wetted　during　the　whole　experimental　duration　(8　h).　Ammonia　nitrogen　could　not　be　fully　rejected　at　the　neutral　pH　condition　(46.4%),　but　feed　acidification　(pH　5.0)　could　increase　the　rejection　rate　to　94.24%.　Feed　acidification　also　enhanced　membrane　fouling　resistance　with　a　final　specific　flux　of　0.74　after　concentrating　the　landfill　leachate　by　5　times.　Energy　consumption　analysis　showed　that　the　waste　heat　in　an　incineration　power　plant　was　sufficient　to　drive　the　on-site　treatment　by　MD　in　the　form　of　AGMD.　This　work　may　provide　a　green　option　for　landfill　leachate　treatment.