Hot air type phase change material energy storage water tank and solar all-in-one machine

The utility model discloses a hot air type phase change material energy storage water tank which comprises a water tank shell, a water tank jacket, a water tank inner container and two water tank packaging ends, a heat preservation layer is filled between the water tank shell and the water tank jacket, and a hot air cavity is defined by the water tank jacket, the water tank inner container and the two water tank packaging ends. Two hot air circulating pipes penetrate through a water tank jacket, a hot air guide plate is arranged on one side of the hot air circulating pipe on the air inlet side in a matched mode, and a heat exchange water pipe and a phase change energy storage material are arranged in an inner container of the water tank. The hot air circulating pipe introduces hot air into the hot air cavity to heat the phase change energy storage material, water in the heat exchange water pipe is rapidly heated, the phase change energy storage material has a certain energy storage effect, energy can be relea