An object of the present invention is to provide a portable pumpless spraying system for moving and spraying a chemical solution for each facility for agricultural and livestock production and a spraying method using the same. That is, the present invention is connected to the compressor (C), a plurality of air docking unit 12 including a main air port (12a) at each location corresponding to the facility (1) for the agricultural industry divided into a plurality of main air Line 10； An air output port 22 connected to any one of the main air ports 12a of the air docking unit 12 to output the supplied compressed air, and a chemical solution that outputs a chemical using the supplied compressed air pressure A movable spray module 20 provided with an output port 24； An air branch pipe (30) connected to the air output port (22) and extending into the agricultural and livestock facility (1) to transport compressed air； A chemical liquid dispensing pipe 40 connected to the chemical liquid output port 24 and extending into the agricultural industry facility 1 in parallel with the air distributing pipe 30 to transfer the chemical liquid； And a plurality of air-fluid mists 50 connected to the air jet pipe 30 and the chemical liquid jet pipe 40 and provided to spray the chemical liquid into fine particles using compressed air pressure. . The use of the portable pumpless spraying system for the agriculture and agriculture industry and the spraying method using the same has the advantage of being able to effectively spray a large area compared to the capacity of the compressor at low cost.본 발명은 농축산용 시설 동별로 이동하며 약액 분무하는 이동식 무펌프 분무시스템 및 이를 이용한 분무방법을 제공코자 하는 것이다.즉, 본 발명은 압축기(C)에 연결되고, 복수동으로 구분되는 농축산업용 시설(1)과 대응하는 위치마다 메인에어포트(12a)를 포함하는 복수의 에어도킹부(12)가 구비되는 메인에어라인(10)； 상기 에어도킹부(12)의 메인에어포트(12a) 중 어느 1개소에 연결되어, 공급받은 압축공기를 출력하는 에어출력포트(22)와, 공급받은 압축공기 압력을 이용하여 약액을 출력하는 약액출력포트(24)가 구비되는 이동식 분무모듈(20)； 상기 에어출력포트(22)에 연결되고, 농축산업용 시설(1) 내부로 연장되어 압축공기를 이송하도록 구비되는 에어분기관(30)； 상기 약액출력포트(24)에 연
