The utility model relates to an
air purifier which comprises an outer
barrel, the outer
barrel comprises an upper shell and a lower shell, a lamp strip is arranged on the outer ring of the top end of the lower shell, a plurality of air inlets are formed in the lower portion of the lower shell, an air outlet top cover is installed in the center of the top of the upper shell, and a control panel is arranged in the middle of the air outlet top cover. A filtering
assembly is arranged on the inner side of the outer
barrel and comprises a filter, a drainage air duct with a trumpet-shaped top and an upward opening and a drainage
nozzle, and the bottom of the drainage air duct is locked with the upper end of the fan. According to the utility model, a circle of lamp strip is arranged on the outer cylinder body, so that the aesthetic property during use can be improved, and meanwhile, brightness can be provided at night; the trumpet-shaped drainage
air channel with the upward opening is formed in the top of the filter, so that resistance can be reduced when air flows out, blown-out air is drained and accelerated, it is ensured that the air blown out of the fan cannot flow backwards, then the purpose of large
air volume can be achieved only through the small-power fan, and finally the efficiency of CADR at the
air channel opening is effectively improved.