NOVELTY - The portable solar-thermal device comprises a sewage zone, a condensation zone, a collecting groove (10) for receiving the processed water, a lower vessel (2) receiving the sewage water and having a first cylindrical connection area, an upper vessel (3) forming the condensation zone and having a second cylindrical connection area, and a supporting ring (4) with first and second reception flanges for fastening the cylindrical connection areas of the lower vessel on one side and the upper side on other side. The supporting ring receives the collecting groove.    USE - Portable solar-thermal device for processing water from sewage water, waste water and salt water to obtain pure or fresh water or drinking water.    ADVANTAGE - The portable solar-thermal device is capable of easily and rapidly processing the water with good quality, and is space-saving and simple.    DETAILED DESCRIPTION - The portable solar-thermal device comprises a sewage zone, a condensation zone, a collecting groove (10) for receiving the processed water, a lower vessel (2) receiving the sewage water and having a first cylindrical connection area, an upper vessel (3) forming the condensation zone and having a second cylindrical connection area, and a supporting ring (4) with first and second reception flanges for fastening the cylindrical connection areas of the lower vessel on one side and the upper side on other side. The supporting ring receives the collecting groove equipped with an outlet pipe and an inlet pipe (11) for the sewage water. The supporting ring consists of a plastic injection molded part, in which hoses or tubes for the inlet pipe and outlet pipe are adhered into the corresponding holes. The upper vessel and the lower vessel are formed from the both parts of a water bottle cut-off in the lower third, and are fixed at the reception flanges of the supporting ring by adhering using adhesive tape or clamping rings. The supporting ring has a reception element for fastening a standing foot. The lower vessel consists of inflatable, dark matt-black plastic film and is fastened at the first reception flange of the supporting ring. The upper vessel consists of a thin inflatable transparent plastic film and is fixed at the second reception flange of the supporting ring. The upper vessel has thin condensation strips made of metal. The condensation strips are incorporated into the film material or are applied onto the film material, and run to the collecting groove in the supporting ring. The inner side of the lower vessel is knocked out with a thin insulating film. The device has a filling bag made of soft polyvinyl chloride. The filling bag is connectable to the inlet pipe provided with a check valve. A filling support of the filling bag has bellows for pumping-off the device. The outlet pipe has an outlet valve. The upper vessel has a cooling hood spaced apart from its outer wall and made of bright plastic material. The cooling hood has an annular inlet opening in the area of the second reception flange of the supporting ring for supplying the cooled air and leads into an outlet tube made of matt-black plastic. The distance between the upper vessel and cooling hood is produced by an inflatable tubular structure. The lower vessel has a heating hood spaced apart from its outer wall and made of dark plastic material. The heating hood serves for supplying heated air over a central matt-black connection tube and has an annular exit opening in the area of the first reception flange of the supporting ring. The distance between the lower vessel and heating hood is produced by an inflatable tubular structure. A heating hose is fixed at the central connection tube. A gas burner or a spirit burner is connected at the central connection tube. The supporting ring including the outlet pipe, inlet pipe and adhesive unit is closed as part of a packaging unit of a filled water bottle.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a portable solar-thermal device for processing water from sewage water, waste water and salt water.    Lower vessel (2)    Upper vessel (3)    Supporting ring (4)    Collecting groove (10)    Inlet pipe. (11)