Heat dissipation big -arch shelter

The utility model belongs to the green house field specificly provides a heat dissipation big -arch shelter. A heat dissipation big -arch shelter, include the both sides stand, perpendicularly install horizontal vaulting pole on the stand, with the diagonal brace and the arch big -arch shelter of horizontal vaulting pole slope, the arch big -arch shelter is divided into a half dome shed roof and the 2nd half dome shed roof, the top of the 2nd half dome shed roof is higher than the top of a half dome shed roof, and the line at the 2nd a half dome shed roof top and a half dome shed roof top forms the angle of inclination with the horizontal plane, be equipped with the vent between the top of a half dome shed roof and the top of the 2nd half dome shed roof. The utility model discloses simple structure, the radiating effect is good, can be according to the switching of ventilation cooling needs control heat dissipation window, and two half dome shed roof staggered arrangements enable the insect and gather to the bottom, effectively collect the insect, prevent the interior crop insect pest influence of canopy.