Anti-splashing breathing filter

The utility model discloses an anti-splashing breathing filter which comprises a filter layer upper cover, filter cotton and a filter layer lower cover, the filter layer upper cover and the filter layer lower cover are in threaded connection, the filter cotton is clamped between the filter layer upper cover and the filter layer lower cover, and a plurality of protruding strips for supporting the filter cotton are symmetrically arranged in the filter layer lower cover. A Y-shaped upper end connecting pipe communicated with the interior of the filter layer upper cover is arranged at the eccentric position of the top end of the filter layer upper cover, a round pipe vertically penetrating through the filter layer upper cover and filter cotton is arranged in the center of the top end of the filter layer upper cover, and the lower end of the round pipe penetrates through the inner bottom face of the filter layer lower cover and is communicated with the interior of a lower end connecting pipe arranged at the lower