Vegetable greenhouse seedling raising device suitable for low-latitude high-altitude mountainous area

The utility model discloses a vegetable greenhouse seedling raising device suitable for low-latitude and high-altitude mountainous areas. The vegetable greenhouse seedling raising device comprises a seedling raising greenhouse; the seedling raising middle shed is arranged in the seedling raising greenhouse, and a plant growth light supplementing lamp system, a dehumidification air circulating fan, a first plane upside-down atomization system and a central cooling and heating air conditioner are arranged in the seedling raising middle shed; the small seedling raising shed is arranged in the middle seedling raising shed, and a first U-shaped pipe connected with the first air energy hot water circulation system and the first water heating conveying and recycling cold water pipeline system is laid at the bottom of the seedling raising frame; the small seedling hardening shed is arranged in the seedling growing greenhouse and located outside the seedling growing middle shed, a second plane upside-down hanging atom