How to get rid from characterless and torchuring wife

I was marrid on 4th dec'2011 with very poor family without any dowry & condition. but my wife is very much addicted in mobile, social media, whatsapp, facebook, chatting. all the time she busy on that since begining. whenever i tried to control her/convince her, she very rudly misbhaved with me, damaging mine property, even tourhcing mine only one child of 4 years. shw alwasy freedom what she wants, alwasy busy in phone . even i informed her family but they also failed to convince him. our neighbour, relatives also aware on this & tried to convince her but failed. recently she deeply connected with her boyfriends, even leaving home to meet with her boyfriend, all the time she busy in phone/social media for enoyeing illegal affairs. mine neighbour has seen several time outside with unknown male friend in objectionable attitude. several time i tried to control but failed & she blackmailing me by damaging mine property, torchuring to my child & threateninng for filing fales police complaint against me. ultimately i tried for mutual divorce but she not agree. kindly guide me how to get rid from this problem