Electrostatic dust collector

The utility model relates to the technical field of air filtration, and discloses an electrostatic precipitator which comprises a combined base, a shell, a side plate, a metal integrated frame, an ozone filter screen, a high-voltage tungsten wire group and a ventilation hood, the side wall of the shell is detachably connected with the side plate through a bolt, and the side wall of the side plate is detachably connected with the ventilation hood through a bolt. The bottom of the shell is detachably connected with a combined base through bolts, a high-voltage generator is arranged on the bottom wall of an inner cavity of the shell, and a metal dust collection frame, an ozone filter screen and a tungsten filament high-voltage wire group are sequentially arranged in the shell; according to the utility model, the dust collection efficiency is high, the dust collection efficiency of the dust collector is up to more than 90%, in addition, tiny particles (0.01-0.10 [mu] m) can be captured, a charge field can be gene