Pump shell manufacturing device of air pump

The invention relates to a manufacturing device for a pump shell of an air pump. The manufacturing device comprises a T-shaped supporting mechanism horizontally and fixedly arranged on the ground; a right transverse moving mechanism and a left transverse moving mechanism are slidably arranged on the supporting mechanism in the transverse direction, a longitudinal moving mechanism is slidably arranged on the supporting mechanism in the longitudinal direction, and a lifting mechanism is arranged over the right transverse moving mechanism, the left transverse moving mechanism and the longitudinal moving mechanism. The right transverse moving mechanism, the left transverse moving mechanism, the longitudinal moving mechanism and the lifting mechanism are provided with a right mold, a left mold, a rear mold inner inserting head and an upper mold correspondingly, the rear mold inner inserting head is sequentially sleeved with a large ring sleeve and a small ring sleeve from back to front to be combined into a pump s