Wants to give divorce

Respected sir/ madam I have done second marriage (After giving full information regarding my first marriage and my 8 years old girl child).My second wife doest not want to stay with me and my girl child. 1. She always forcing me to leave my girl child. 2.After 1.5 years of marriage she is unable to give birth a child due to gyano problem (Pcod/pcos in both overies). That is why she is jelesing with my girl child. 3. She demands half of my salary in every month.(My salary is only 40k). 4. She some time does not want to make food for my child and even me also. That is why I have some beaten her . She lodge a complain in local police station. 5. After 10 -15 days in a month she demands to go her father place, Even I am a single person of my family because my both parents were died 10 years before Sir / madam I am told you all the truth my life ....please save me from my wife and their family .....their family members wants to kill me....they give me thraith over phone and said me that they will charged me for 498 ....in such condition what can I do because nobody is alive in my family for look after my gilr child.....pls help me out sir/ madam