The present invention relates to a portable agricultural chemical sprayer and, more particularly, to a portable agricultural chemical sprayer enabling automatic stirring which enables agricultural chemicals in the sprayer to be naturally stirred by starting of an embedded pump by constructing an internal circulating structure of the sprayer such that the agricultural chemicals are sprayed to enable sprinkling or internal circulation of the agricultural chemicals in a portable agricultural sprayer in which a pump is embedded such that agricultural chemicals are automatically sprayed and sprinkled. An agricultural chemical sprayer of the present invention includes: a liquid chemical tank a pump unit including a pump, a motor, a battery for power supply, and a motor switch determining whether the motor is driven or not a branch pipe connected to the pump of the pump unit and formed in a Y-type pipe or a T-type pipe such that a flow of liquid flown in from the liquid chemical tank is branched a spray hose of which one end is connected to one side of the branch pipe a spray nozzle installed at the other end of the spray hose a circulation hose of which one end is connected to other side of the branch pipe, and of which the other end is connected to any one side surface of the liquid chemical tank and a circulation opening/closing valve installed at the circulation hose such that the circulation opening/closing valve is capable of being opened or closed. The purpose of the present invention is to provide a portable agricultural chemical sprayer enabling automatic stirring which enables two or more liquid chemicals or powder chemicals, and others accommodated in the sprayer to be naturally stirred in real-time by forming a flow of liquid chemicals in a liquid chemical tank while circulating the liquid chemicals in the sprayer using a circulation hose during the operation of a pump.COPYRIGHT KIPO 2016내부에 펌프가 내장되어 사용자의 조작에 의해 농약이 자동으로 분무되어 살포될 수 있도록 되어 있는 휴대용 농약분무기에 있어서 내부의
