Auxiliary supporting device of coal mining machine and using method thereof

The invention discloses an auxiliary supporting device of a coal mining machine and a using method thereof. The device comprises a supporting body, two symmetrical and oblique connecting rod parts, an adjusting oil cylinder, a control module and a handheld remote controller, wherein the supporting body comprises a sliding seat and an upper connecting seat; each of the two connecting rod parts comprises a connecting rod and a supporting seat; the upper end of each connecting rod is hinged to the corresponding supporting seat; each connecting rod is hinged to the sliding seat; the upper connecting seat is hinged to the telescopic end of the adjusting oil cylinder, so that the sliding seat swings. The method comprises the following steps of: 1, mounting the auxiliary supporting device; 2, performing contraction adjustment on the auxiliary supporting device; and 3, performing elongation adjustment on the auxiliary supporting device. The auxiliary supporting device is reasonable in design, assists in supporting a