Novel air purifier

The utility model discloses a novel air purifier which comprises a purifying box, a purifying box is installed in the purifying box, a partition plate is installed in the purifying box and divides the purifying box into a purifying cavity on the left side and a negative pressure cavity on the right side, a cover plate is further installed at the upper end of the purifying box, shutters are installed on the left side and the right side of the purifying box respectively, and the left side and the right side of the purifying box are both provided with an air inlet and an air outlet. A box door is hinged to the front side of the purification box; the purification mechanism is mounted in the purification cavity and used for purifying air; the negative pressure mechanism is mounted in the negative pressure cavity and used for discharging purified air; the air purifier has the advantages that the air purifier is reasonable in structure, the filter screens and the filter cotton can be conveniently detached and replac