The invention relates to an anti-abrasion oil-air cylinder and an
engineering machine. The anti-abrasion oil-air cylinder comprises a cylinder
barrel, a
piston rod, a
piston and a guide sleeve. The guide sleeve is arranged at the end of the cylinder
barrel, and the
piston is arranged in the cylinder
barrel; one end of the
piston rod is connected to the piston, and the other end of the
piston rod penetrates out of the guide sleeve; one side of the piston is provided with an
air cavity, and the other side of the piston is provided with an oil cavity; an air inlet is formed in the portion, provided with the
air cavity, of the cylinder barrel, the air inlet is connected with one end of an air
pipe, and the other end of the air
pipe is connected to a filter; and the filter is fixedly arranged on the cylinder barrel, and an oil inlet is formed in the portion, provided with the oil cylinder, of the cylinder barrel. According to the anti-abrasion oil-air cylinder and the
engineering machine, the filter is arranged on the cylinder barrel, the problem that due to the fact that the filter is independently arranged, the size of the oil-air cylinder is overlarge can be solved, the filter can remove particulate impurities in the air and provide clean air for the
air cavity, and the probability that due to the fact that the oil-air cylinder sucks the air with
impurity particles in the working process, the abrasion is increased can be avoided.