the invention relates to a device for the distillation of a liquid , with at least one mirror surface for focusing solar radiation onto an absorber tube which can be filled at least partly with the liquid , wherein the absorber tube , is provided , for taking up energy from the solar radiation and for evaporating the liquid , and to at least one first condensation tube for condensing the evaporated liquid , the first condensation tube being disposed at a distance from the absorber tube , to which it is coupled by at least one distillation bridge . in order to make a simple and cost effective distillation device possible , with which a particularly efficient utilization of the solar energy for a high distillation performance is achieved , it is provided that a transparent sleeve is coupled thermally with the condensation tube and surrounds the absorber tube , a space remaining between the sleeve , and the absorber tube .