Energy-saving wastewater treatment equipment

According to the energy-saving wastewater treatment equipment, in the working process, the stirring tank is communicated with an external wastewater source through the water inlet, external wastewater enters the stirring tank through the water inlet, and a water column formed by the external wastewater impacts one end, far away from the stirring shaft, of the driving blade. The driving blade drives the stirring shaft to rotate so as to drive the stirring rod to rotate. Purifying liquid medicine is fed into the stirring tank through the medicine feeding opening, enters the annular liquid storage groove formed in the liquid medicine separation disc, penetrates through the liquid separation holes and then falls on the driving blades, and is scattered into fine water drops by the driving blades in the rotating process, so that the fine water drops can be uniformly and sufficiently mixed with wastewater in the stirring tank. The stirring rod rotates to fully stir and mix the purification liquid medicine and the wa