Agricultural machine plastic fuel tank breather valve with filtering function

The utility model discloses an agricultural machine plastic fuel tank breather valve with the filtering function. The agricultural machine plastic fuel tank breather valve comprises a rollover valve, a ventilating rubber pipe, a filtering net connecting base and a filtering net. One end of the ventilating rubber pipe is of a U type, the other end of the ventilating rubber pipe is of an L type, the U-type end of the ventilating rubber pipe is fixed to the filtering net connecting base through a hoop, the other end of the ventilating rubber pipe is fixed to the rollover valve through a hoop, the rollover valve is sleeved with a rollover valve cover plate, the filtering net is arranged on the outer edge of the bottom of the filtering net connecting base, and a seal ring is arranged at the bottom of the rollover valve. As one end of the ventilating rubber pipe is of the U type, and the other end of the ventilating rubber pipe is of the L type, the ventilating rubber pipe can effectively relieve the impact force of fuel and prevent fuel leakage; the filtering net is located at the bottom of the filtering net connecting base, dust in air is prevented from falling into the ventilating pipe, the air entering the ventilating pipe is effectively filtered, large particles can be prevented from blocking the filtering net, and the service life of the filtering net can be prolonged; the rollover valve additionally arranged can prevent fuel leakage and avoid fire disasters.