Prevent ventilative door of tiny mosquito entering

The utility model discloses a prevent ventilative door of tiny mosquito entering, including main door, be equipped with first lock on the main door, the upper portion of main door is equipped with ventilative frame, and the side of ventilative frame articulates there is ventilative door, be equipped with the rail guard in the ventilative frame, the side of ventilative frame articulates there is ventilative door, be equipped with the second lock on the ventilative door, be equipped with the window screening on the ventilative frame, the net of window screening for being knitted with silk by the chemical fibre, it has fine hair to change protruding the taking shape in fibrillary surface, changes fibrillary surface and scribbles the titanium dioxide layer. The utility model discloses simple structure, convenient to use can ventilation, when stoping external mosquito dust to get into, can adjust the window screening as required, carry out half division, standard -sized sheet or part and open, have a clearance eff