The invention relates to fresh air equipment with electrostatic dust collection and humidification functions. The fresh air equipment comprises a main body and a filter screen. A dedusting mechanism and a humidifying mechanism are arranged inside the main body. The dedusting mechanism comprises an air cylinder, a telescopic frame, a lifting plate, an electrostatic plate, a waste box, two hinged blocks and two collecting assemblies. The humidifying mechanism comprises a connecting box, a first air outlet pipe, a second air outlet pipe, a communicating pipe, a water tank, a third air outlet pipeand a switching assembly. The switching assembly comprises a switching plate, a driving unit, two guide units and two switching units. The switching units comprise rotating shafts, take-up reels, gears, pull ropes and racks. Due to the fact that the fresh air equipment with the electrostatic dust collection and humidification functions is provided with the dedusting mechanism, dedusting work canbe conducted on the filter screen in an electrostatic dust collection mode, the phenomenon that the filter screen is blocked to influence air ventilation is avoided, the air can be humidified throughthe humidifying mechanism, and the condition that the air led into a room is too dry to affect using comfort is evaded.