Gas collection type solar seawater desalination device

The invention relates to the field of seawater desalination, in particular to a gas collection type solar seawater desalination device which comprises a seawater chamber, an evaporation chamber, a gas collection system and a condensation chamber. The seawater chamber is filled with seawater, the evaporation chamber is covered with a light-transmitting glass plate, a rotary evaporation system is arranged between the seawater chamber and the evaporation chamber, the rotary evaporation system moves circularly, seawater in the seawater chamber is conveyed into the evaporation chamber to be evaporated, crystals formed after seawater evaporation are sent back to the seawater chamber, and the circular evaporation process is achieved. The deposition of salt on the evaporation surface is effectively avoided, and the controllable seawater transportation rate is provided. The air inlet of the air collection system is always aligned with the wind direction, external humid and hot air and seawater steam enter the condensa