Solar steam system capable of realizing multi-effect utilization of waste heat

The invention provides a reflecting mirror enhanced heat collection type solar seawater desalination system which mainly comprises a valve, a metal generation pipe, a liquid level meter, a pressure gauge, a metal tee joint, a double-layer glass cover plate, a steam output pipe, a heat collection and energy collection plate, a stainless steel heat preservation shell, an iron stand, a heat preservation box, a water pump, a water purification box, a steam-water separator, a condenser, a cold water box, a liquid storage box. and necessary connecting pipelines. Firstly, seawater in a first condenser is preheatedby utilizing a heat transfer working medium in a CPC heat collector and steam generated by heating the seawater by a light-gathering heat collector, and the seawater in the heat preservation box in which the condenser is positioned is heated to be higher than 70 DEG C; the seawater is heated to 70 DEG C or below in the next condenser and finally flows out of the condenser to be collected and stored. The sea