Electric deflection type pesticide-saving electrostatic spraying device and use method thereof

The invention discloses an electric deflection type pesticide-saving electrostatic spraying device and a use method of the electric deflection type pesticide-saving electrostatic spraying device. Theelectric deflection type pesticide-saving electrostatic spraying device comprises a sliding rail, the sliding rail is provided with a first clamping plate and a second clamping plate, a telescopic rodis arranged between the first clamping plate and the second clamping plate, a spraying rod is further arranged between the first clamping plate and the second clamping plate, an electrostatic generator is arranged at the tail end of the spraying rod and is connected with a spraying head, a first magnetic pole plate is arranged at the lower part of the first clamping plate, a second magnetic poleplate is arranged at the upper part of the second clamping plate, when a charged pesticide droplet is sprayed out from the spraying head, the pesticide droplet deflects under the action of a magneticfield, a sucking pump is arr