High-efficiency tower distilling apparatus

The utility model relates to a high-efficiency tower type sub-boiling distilling apparatus. An evaporator and a condenser both adopt concave opening types and are directly in butt joint through a connecting piece, and a guide pipe is arranged between a distilling bottom and an outer part which is provided with a heat-insulating temperature-regulating type heater; a condensing tank is arranged in the condenser on which a water inlet pipe and a water outlet pipe are arranged, and the bottom of the inner side of the condenser is provided with a liquid collecting tank which is communicated with a collecting pipe of the outer part. The utility model enlarges a steam passage so as to avoid evaporating liquid flowing back and respectively heats the upper and the lower parts of the evaporator so as to thoroughly avoid the evaporating liquid flowing upwards; the utility model enlarges the area of a condensing surface and enhances condensing efficiency; the evaporator and the condenser all adopt the concave opening types so that people can sufficiently clean the evaporator and the condenser; the utility model can adopt different types of condensing matter so as to ensure that evaporating matter can be sufficiently condensed, and has the advantages of simple structure, easy installation and small ground occupation.